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S0021961420301294 | Liquid liquid equilibrium data for water furfuryl alcohol solvent ternary systems were determined at | The LLE data for water TFP DIPE MTBE CH. Cl. MIBC were measured. The distribution coefficient and selectivity were calculated. The reliability of LLE data were verified by the Othmer Tobias Bachman and Hand equations. The NRTL and UNIQUAC models were applied to correlate the experimental LLE data. The binary interactio... |
S0021961420301415 | Densities and viscosities of ternary system and three corresponding binary systems and were determined at 7 temperatures from 293.15K to 323.15K . For the ternary system and binary systems the excess molar volumes | Density and viscosity of ethylcyclohexane 1 butanol ethyl caprylate mixtureswere investigated. Excess molar volumes and viscosity deviationwere calculated and correlated. The change of. and. is mainly due to the change of hydrogen bond and molecular structures. |
S0021961420301440 | Although salt ions severely distort the gas hydrate lattice this phenomenon is poorly realized in the existing statistical thermodynamics models . We propose a mechanistic model by addressing a novel concept of instability in the hydrate water film arising due to salt exclusion . The consequent water reorientation in t... | Hydrate vaporliquid phase equilibrium model developed for electrolyte system. Modifications proposed in existing model of Klauda and Sandler. Effect of thermo physical properties on hydrate lattice structure considered. Latest thermodynamic models compared with respect to experimental data. |
S0021961420301506 | Extractive distillation with propyl propionate butyl propionate and butyl butyrate as extractive solvents is adopted to separate the binary azeotrope isopropyl alcohol isopropyl acetate . Through the relative volatility and | The entrainers were explored by relative volatility and. diagram. Propyl propionate butyl propionate and butyl butyrate were selected as entrainers. The VLE data for the systems isopropyl acetate entrainers were measured. The measured VLE data were correlated by the NRTL UNIQUAC and Wilson models. |
S0021961420301531 | The equilibrium solubility is the basis for purification and further theoretical studies of o vanillin . In this paper the solubility data of o vanillin in three pure solvents including water ethanol n propanol and two binary solvents of water ethanol and water n propanol has been experimented under atmospheric pressur... | An isothermal saturation method was used to test the solubility of o vanillin. Modified Apelblat equation was used to correlate the experimental solubility data. The thermodynamic parameters such as. were achieved by vant Hoff analysis. Co solvency and liquid liquid phase separation phenomena was observed. |
S0021961420301592 | The saturated solubility of 6 phenyl 3 pyridazinone in aqueous co solvent mixtures of methanol ethanol isopropanol and ethylene glycol was determined through experiment by employing the saturation shake flask method at temperatures from 278.15 to 318.15K and local atmospheric pressure . For all the co solvent mixtures ... | 6 Phenyl 3 2H pyridazinone solubility in four aqueous co solvent mixtures of alcohols was determined and correlated. Preferential solvation of 6 phenyl 3 2H pyridazinone in four mixtures was studied via IKBI technique. Solvent effect was studied in terms of solute solvent and solvent solvent interactions. |
S0021961420301725 | The viscosity of four dilution solution systems was determined for ionic liquids with Dimethyl Carbonate at lower concentration from 288.15K to 313.15K . The ILs include 1 ethyl 3 methylimidazolium bissulfonyl imide C | The four dilution of ILs C. mim NTf. C. mmim NTf. C. mim NTf. C. mmim NTf. with DMC were prepared. The viscosities of the systems have been measured and discussed. The relative viscosity have also been calculated and discussed. Influences of CH. and CH. CH. group introduction on properties were discussed. |
S0021961420301737 | D limonene is a monoterpene naturally found in citrus peels especially lemons and oranges and is responsible for their strong odour . D Limonene has specific properties that enable its use in various industrial segments such as foods perfumes beverages cosmetics pharmaceuticals detergents soaps insecticides disinfectan... | Excess molar volume of d limonene alcohol compounds were all positives. Flash Point of d limonene alcohol compounds were highly non ideal. UNIFAC provided a better description of the Flash Point behavior than Ideal model |
S0021961420302044 | As one of the new generations of alternative refrigerants in the future hydrofluoroolefins and mixed refrigerants containing HFOs have gradually attracted attention . In this study the vapour liquid equilibrium for the binary system of isobutane 3 3 3 trifluoropropene was measured with a recirculation method at five te... | The vapor liquid equilibrium VLE data for R600a R1243zf were measured. VLE data were correlated by Peng Robinson equation with Huron Vidal mixing rule. Azeotropic behaviours were found at a high mole fraction of R1243zf. |
S0021961420302135 | Using the saturation shake flask technique the equilibrium solubility of risperidone in co solvent mixtures of methanol water ethanol water isopropanol water and | Risperidone I solubility in four aqueous alcohol mixtures was determined. Solubility data were correlated by vant Hoff Jouyban Acree and Jouyban Acree models. Preferential solvation of risperidone I in alcohol solutions were derived via IKBIs method. Solvent effect was studied by using KAT LSER model. Cavity formation ... |
S0021961420302202 | In this study the solubility of musk xylene in four binary solvents was measured by the isothermal saturation method at temperatures ranging from 278.15K to 313.15K under atmospheric pressure . The results indicate that the solubility of musk xylene increases with increasing temperature and ethyl acetate mass fraction ... | The solubility of musk xylene in binary solvents. Analysis of musk xylene by DSC and XRD. Five thermodynamic models were used to correlate the solubility date. The thermodynamic properties were calculated by the vant Hoff equation. |
S0021961420302317 | Crystallization and purification is an important step in drug preparation . In this work the solubility of doxofylline in some pure and mixed solvents at | The solubility of doxofylline in pure and binary solvents. The solubility data were correlated by some thermodynamic models. The effect of solvent properties on the solubility was analysed. Some thermodynamic properties of dissolution process were evaluated. |
S0021961420302342 | Thermodynamic data are the basis for design of crystallization process and control of crystal morphology and polymorph . In this work solubility data of L carnosine in different binary solvent mixtures including water were determined in temperatures ranging from 288.05K to 323.15K by static method under atmospheric pre... | Solubility of L carnosine in three kinds of binary solvent mixtures were determined using gravimetric method. The experimental solubility data of L carnosine were correlated and analyzed by three thermodynamic models. Dissolution thermodynamic properties of L carnosine were calculated and discussed. |
S002196142030241X | The thermodynamic properties and phase behaviour of 1 3 diisopropylnaphthalene were studied for the first time using static vapour pressure measurements Tian Calvet calorimetry and differential scanning calorimetry . Polymorphic behaviour of the compound was detected and studied in detail by combination of DSC and vari... | Thermodynamic and structural properties of 1 3 diisopropylnaphthalene were studied. New metastable disordered phase was detected and described. Consistent thermodynamic description was developed. |
S0021961420302792 | Micellisation of a binary mixture of sodium deoxycholate and sodium cholate is examined for the aqueous solution without additives and for the aqueous solution containing methanol NaCl and methanol NaCl in the temperature range | In the temperature interval. 278.15298.15 for micelle SD SC in the aqueous solution synergistic interactions exist. The impact of methanol from aqueous solution is expressed differently over. and. The effect of Na. ion is similar for both thermodynamic functions. and. Thermodynamic stabilization of mixed micelle SD SC ... |
S0021961420303013 | Experimental data and modelling of electrolyte solutions are important in different fields . Separation and purification of such materials depend on knowledge of solid liquid equilibrium as well as the mathematical models allow the development of solution theories and process simulators . Therefore the current work pre... | Solubility of NaCl KCl and NH. Cl in mixtures of water and methanol was determined. The experimental data was correlated by the modified Pitzer model. |
S0021961420303220 | Nanometer copper possesses a broad range of applications in catalytic electrochemistry and functional materials and these applications are intimately associated with the thermodynamic properties of melting . In this paper we deduced the exact relationships between the integral melting enthalpy the entropy of the nanopa... | The integral melting enthalpy and the entropy of nanoparticle. The influencing of the thermodynamic properties of the melt. The changes in the thermodynamic properties of nanoparticles with particle size. |
S0021961420303347 | The limited availability of accurate experimental data in wide ranges of pressure temperature and composition is the main constraining factor for the proper development and assessment of thermodynamic models and equations of state . In the particular case of carbon capture and storage processes there is a clear need fo... | Design and operation of CCS processes need reliable thermodynamic models. New high precision experimental density data for CO. O. mixtures are reported. Thermodynamic models used in CCS processes are tested against high precision experimental data. Experimental data will foster the fundamentals of reference equations o... |
S002196142030344X | In carbon capture utilization and storage a thorough understanding of thermophysical behaviour of the candidate fluid is an essential requirement for accurate design and optimised operation of the processes . In this communication vapour liquid equilibrium data of the binary mixtures of CO CO | VLE data for CO. CO at 253 to 298K. Results compared to the PR classical and WS mixing rules EoS GC and GERG EoSs. EoS GC with the specific departure function is superior to other models. |
S0021961420303566 | The liquid liquid equilibria data for the system were measured at 303.2K and 323.2K under 101.3kPa . The tie line data for both systems are displayed in the phase diagram with typical type I behaviour . The distribution coefficient and separation factor were calculated according to the measured tie line data . The calc... | The LLE data for DIPE IPA PDO or EG were obtained at 303.2 K and 323.2K. PDO or EG as a solvent can efficiently separate IPA from DIPE mixture. NRTL and UNIQUAC models were used to correlate to the LLE data. The consistency of data regression were checked by the GUI MATLAB method. |
S002196142030358X | This contribution reported the equilibrium solubility of aprepitant in four binary aqueous mixtures of methanol ethanol acetone and 1 4 dioxane acquired through a shake flask method from 283.15K to 323.15K under local atmospheric pressure of 101.2kPa . At the same mass fraction compositions of methanol ethanol acetone ... | Solubility of aprepitant form I in four aqueous mixtures was determined and correlated. Preferential solvation of aprepitant form I were derived via IKBIs method applied to solubility. Solvent effect on solubility variation was investigated through KAT LSER model. |
S002196142030361X | The aim of this paper is to enhance the knowledge on the behaviour and thermodynamic properties of natural and synthetic biopolymers in aqueous solutions . The acid base properties of Carrageenan | The study improves the knowledge on the behaviour and thermodynamic properties of some biopolymers. The variation of the constants in dependence on ionic strength has been modelled. The binding ability of the polymers has been investigated towards Ca. Zn. and Sn. The effect on the complexing ability of a secondary inor... |
S0021961420303645 | In this work isothermal vapour liquid equilibrium data for the binary mixtures of pentafluoroethane 2 3 3 3 tetrafluoroprop 1 ene and trans 1 3 3 3 tetrafluoropene have been investigated . The experimental measurements were carried out by using the | The. analytical apparatus was applied to carry out the measurements. The VLE data for the two binary systems R125 R1234yf and R125 R1234ze E were measured at five temperatures. The experimental VLE data were correlated by the PR type WS NTRL models. The systems exhibited zeotropic behavior at the studied temperatures. |
S0021961420303694 | Equilibrium apixaban solubility in isopropanol water ethanol water acetone water and methanol water mixtures was acquired by a shake flask method from 288.15K to 328.15K under atmospheric pressure of 101.2kPa . At a certain temperature the highest apixaban solubility in mole fraction scale was observed in neat solvents... | Apixaban I solubility in four aqueous co solvent mixtures was determined. Solubility data was correlated Jouyban Acree and vant Hoff Jouyban Acree models. Preferential solvation of apixaban I in four mixtures was studied via IKBI technique. Solvent effect was studied in terms of solute solvent and solvent solvent inter... |
S0021961420304584 | The determination of equilibrium solubilities of thiamethoxam in solutions of 1 4 dioxane water N N dimethylacetamide water dimethyl sulfoxide water and acetonitrile water was carried out through the shake flask method from 278.15 to 323.15K under 101.2kPa . The relative contributions of solventsolvent and solutesolven... | Thiamethoxam solubility in four aqueous solutions was determined and mathematically described. Preferential solvation of thiamethoxam were studied IKBIs method applied to solubility. Solvent effect upon solubility variation was inspected via KAT LSER model. |
S0021961420304754 | The solubility of oxaprozin in thirteen organic solvents ethanol n propanol n butanol n pentanol methyl acetate ethyl acetate n propyl acetate n butyl acetate n amyl acetate N N dimethylacetamide N N dimethylformamide dimethyl sulfoxide was determined using a laser monitoring method at atmospheric pressure in this work... | Solubility of oxaprozin in thirteen pure solvents was measured. Hansen solubility parameter was applied to analyze the solubility order. KAT LSER model was applied to analyze the solvent effect. Solubility data was correlated by modified apelblat model h model NRTL model UNIQUAC model. Thermodynamic properties of the s... |
S0021961420305073 | A method for implementing Active Microwave Thermography for use in determining molecular dipole moments is reported . Specifically the experimental setup along with a mathematical model for determining the dipole moment for deionized water is reported herein . The thermal and spatial resolution of the camera is shown t... | First ever use of Active Microwave Thermography AMT to measure the Molecular Dipole Moment. Creation of a model to image the dipole moment shows adequate temperature resolution is required. Measurements made on deionized water. |
S0021961420305097 | 2 3 3 3 tetrafluoropropene has been regarded as a promising alternative refrigerant and gained increasing interesting due to its environmental friendly properties . The introduction of HFO1234yf requires knowledge of the accurate thermophysical properties . The accurate speed of sound data is important for the improvem... | New speed of sound data for HFO1234yf in the gaseous phase are reported. Measurements were carried out using the cylindrical acoustic resonator. Isobaric ideal gas heat capacities for HFO1234yf were deduced. |
S0021961420305103 | Thermal conductivity measurements of eight binary refrigerant mixtures were conducted in the homogeneous liquid and vapour phases with the transient hot wire technique . The temperature range of the measurements spanned from | Measuring thermal conductivity of refrigerant blends. New thermal conductivity data for CO. mixtures with HFCs and HFO 1234yf. Improving the models used by NISTs REFPROP 10 software package. Evaluating the predictive capabilities of the extended corresponding states models. |
S0021961420305115 | The present research work proposed the mole fraction solubility and mixing thermodynamic properties of piperonylonitrile in different binary solvent mixtures such as ethanol at | Solubility of piperonylonitrile was measured by laser monitoring method. The miscibility of piperonylonitrile in mixed solvents was revealed by Hansen solubility parameter. Experimental solubility was regressed and analyzed by four thermodynamic models. Mixing thermodynamic properties of piperonylonitrile were got by W... |
S0021961420305139 | Diethylamine ethyl acetate and triethylamine are usually applied to synthesize an important flame retardant of vinylphosphorus which has high ability to retard flames low toxic content and good washing durability . The isobaric VLE data of and system were determined at 101.3kPa for industrial separation . A minimum aze... | Determine the VLE data of the unknown system molecular dynamics analysis. In our preliminary experiments we found that ethyl acetate and triethylamine had the lowest azeotrope and it was difficult to obtain high purity ethyl acetate from the reactive system. When the liquid molar fraction of diethylamine is greater tha... |
S0021961420305152 | The main objective of this work was to report the mole fraction solubility of rutaecarpine in four binary solutions of methanol water isopropanol water acetone water and ethanol water acquired through the saturation shake flask technique . All experiments were conducted at temperatures from 283.15K to 323.15K . The max... | Rutaecarpine solubility in four binary aqueous solutions was experimentally acquired. Solubility data was correlated by Jouyban Acree and vant Hoff Jouyban Acree models. Preferential solvation of rutaecarpine in four mixtures were derived via IKBIs method. Solvent effect upon rutaecarpine solubility variation was studi... |
S002196731930812X | Multi linear gradients are a convenient solution to get separation of complex samples by modulating carefully the gradient slope in order to accomplish the local selectivity needs for each particular solute cluster . These gradients can be designed by trial and error according to the chromatographer experience but this... | Multi scale optimisation MSO is compared with Genetics Algorithms GAs . Long analysis times and excessive steeped slopes close to the peaks are penalized. Good agreement between experimental and predictions and balanced peak distributions. GAs with penalisation parameters found similar separations to MSO. Competitive m... |
S0021967319308131 | We have used gas chromatographic retention data together with other data to obtain Abraham descriptors for 30 terpene esters . These include the air water partition coefficient as log | Chromatographic data used to determine descriptors for terpene esters. Descriptors then used to obtain physicochemical and environmental properties. These include water solvent and air solvent partition coefficients. These include human odor detection thresholds. |
S0021967319308143 | Three different applications of travelling heating zone reactor chromatography for the downstream processing of monoclonal antibodies are described . mAb containing feedstocks were applied to a fixed bed of the thermoresponsive rProtein A matrix Byzen Pro contained in a bespoke column fitted with a travelling heating d... | Gentle mAb purification using thermoresponsive chromatography. Three applications of a novel travelling heating zone reactor THZR . Continuous mAb concentration 5 fold high yield of 93 . Quasi continuous mAb separation from a second component with high purities 98 . Quasi continuous buffer exchange demonstrating potent... |
S0021967319308155 | Syringe filters are used to separate solids from liquids prior to analysis of poly and perfluoroalkyl substances . This is a critical step in sample preparation as losses of PFASs to the filter material can be significant and lead to underestimation . This study evaluated losses of 21 PFASs in three different matrices ... | Losses of 21 PFASs to five filtration materials were analyzed in three important matrices. PFAS losses to filters could significantly reduce the analytical performance. The largest PFAS losses were observed in MilliQ water and the least in methanol. In the water matrices losses to filters were larger for longer chained... |
S0021967319308167 | A combined procedure based on using ultrasounds for target isolation followed by porous membrane protected micro solid phase extraction using a molecularly imprinted polymer as an adsorbent has been developed as a highly selective extraction and clean up procedure for isolating aflatoxins B1 B2 G1 and G2 from fish feed... | New insights regarding the presence of aflatoxins in fish feed suggests the need for aflatoxins control in the aquaculture sector. Selective aflatoxins pre concentration clean up for reliable HPLC MS MS analysis. Fast and low cost sample pre treatment for aflatoxins assessment in fish feed and other feed and foodstuff. |
S0021967319308179 | Microcystins are cyclic heptapeptide toxins produced by various cyanobacterial genera that are toxic to both animals and humans . In this study a novel strategy was proposed for the quantitation of nine MCs and Nodularin R in lake water using UHPLC MS MS under negative ionization mode in which only centrifugation was e... | A validated UHPLC ESI MS MS method for the quantitation of nine microcystins and Nodularin R in lake water was developed. Only centrifugation was adopted during sample preparation which significantly increase sample throughput. The developed method was applied to investigate microcystins contamination in five lakes fro... |
S0021967319308192 | Table olives contain a wide range of polyphenols responsible for protective effects on health that have been associated with a lower prevalence of chronic diseases . A new method to identify and quantify these compounds in table olives by means of methanol ethanol extraction followed by LC ESI MS MS has been developed ... | Fast method was developed to analyse table olives polyphenols by liquid extraction. Polyphenols from 5 classes were determined in 9min with novel LC ESI MS MS method. Validation results gave good recovery linearity precision and high sensitivity. 15 phenols were found in Marfil table olives mainly hydroxytyrosol HT and... |
S0021967319308209 | Nakai is used as a traditional Chinese medicine . However very limited information is available on its effective components . Traditional procedures for discovering natural bioactive compounds especially for minor ones are usually time consuming and labor intensive . Therefore an efficient approach using ultra high per... | Compounds in. were profiled by UHPLCMS MS with component knockout. A total of 93 compounds were identified or tentatively identified in. Eighty two of them have not been reported in this plant including a new compound. Sixty four compounds exhibited antioxidant activities screened by DPPHUHPLCMS. A new antioxidant brai... |
S0021967319308210 | It is challenging to achieve absolute quantitation and accurate identification with mass spectrometry imaging techniques . The issues facing these techniques include the uncertainty of sampling and ionization efficiencies in a localized environment the difficulty in defining the concentration of spiked standard on tiss... | Continuous flow LMJSS was coupled with LCMS for quantitative MSI of brain. Complete extraction of sphingolipids from brain was achieved by a new LMJ solvent. Isobaric peaks were distinguished with LC for more accurate identification. Quantitation results of LMJSS LC MSI were validated with traditional LCMS. |
S0021967319308222 | Thermal papers significantly contribute to contamination of paper material cycles and the environment with substances of toxicological concern . In particular they contain color developers like endocrine disrupting bisphenols in typical concentrations of about 12 percent per weight . Bisphenol A was used as the common ... | Fast separation of 18 analytes color developers sensitizers dyes in 10min. Quantification without references via UV chromophore concentration and Corona CAD. Analysis of 211 thermal paper samples from the German market 2018 2019. Determination of color developers as functional components 0.02wt . Color developers Perga... |
S0021967319308234 | Plants are an important source of natural iridoids . This study demonstrates for the first time the acetylcholinesterase inhibitory activity of iridoids belonging to the class of antirrhinosides . As iridoids distinguish the chemical composition of most species of the Plantaginaceae family the active AChE inhibitors we... | HPTLC EDA hyphenation leads to isolation of new iridoids. Antirrhinoside iridoids possess promising AChE inhibition activity. A proof of concept for AChE inhibitory potential of iridoids was shown. Structure elucidation of the active metabolites based on HRMS MS and NMR was elaborated. Influence of the structural compo... |
S0021967319308246 | A novel approach based on the use of desirability functions is presented for the robustness assessment of liquid chromatographic separations as derived from computer assisted methods development processes . The approach is based on generally accepted hypothesis that a robust separation procedure will be inert to small ... | Novel approach to assess the robustness of LC procedures based on desirability functions. Bilateral desirability functions used for the first time in the assessment of LC separation robustness. Robustness assessment using compute assisted methods development approach. Sensitivity analysis and workable region evaluation... |
S0021967319308258 | At the borderline between size exclusion chromatography and interaction chromatography there is a special mobile phase composition and temperature at which polymer chains become chromatographically invisible . This point is termed as chromatographic critical point and chromatographic separations performed using these c... | Liquid chromatography at critical conditions of polymers is an important method for polymer characterization. The important variable for improvement of separation in case of LCCC SEC include pore diameter and mobile phase composition. Separation in LCCC IC can be improved by careful selection of pore diameter mobile ph... |
S002196731930826X | A simple rapid and sensitive ultra high performance liquid chromatography with charged aerosol detector method was developed for firstly simultaneous determination of seven oligosaccharides including two pairs of linear oligosaccharides isomers and 3 high branched oligosaccharides as well as sucrose in | Oligosaccharides in. were firstly analyzed. UPLC CAD was developed for analysis of these oligosaccharides. The peaks of oligosaccharides were also identified by UPLC QTOF MS MS method. The developed method was used to evaluate the quality of |
S0021967319308283 | In the present study during removal of minor impurities by twin column recycling chromatography with a solvent gradient a compressing band effect was generated to offset band spreading and retain the principal component band within one column . For real time monitoring a detector was mounted on line after the upstream ... | Twin column recycling chromatography with solvent gradient removed minor impurities efficiently. The detector behind the upstream column could determine the columns switching. The band spreading was counterbalanced by the band compression. The displacement was strengthened to remove the minor pre impurities. |
S0021967319308301 | The separation of 14 chiral sulfoxides was systematically studied on 12 cellulose based chiral columns in acetonitrile and acetonitrile water mobile phases . Out of all monosubstituted methylphenylcarbamates of cellulose the one having a methyl moiety in position 3 showed more universal chiral resolving ability compare... | Separation of enantiomers of 14 chiral sulfoxides. Cellulose based commercial and non commercial chiral stationary phases. Effect of the structure of analytes on separation of their enantiomers. Effect of water content in the mobile phase on enantiomer separations. |
S0021967319308313 | Two new copolymer grafted silica stationary phases were prepared and employed in hydrophilic interaction chromatography . 2 ethyl methacrylate are copolymerized with itaconic acid and acrylic acid respectively via thiol ene click reaction on silica surface with deep eutectic solvents as new solvents . The obtained poly... | Two copolymer grafted silica stationary phases were prepared. Surface thiol ene click reaction on silica in deep eutectic solvents. Enhanced HILIC selectivity was obtained. |
S0021967319308337 | In this work we reported a simple two step method for the synthesis of magnetic mesoporous epoxy resin including one pot template free hydrothermal synthesis of nanoscale amine functionalized magnetic nanoparticles MN NH | A magnetic mesoporous epoxy resin MMER was prepared by a simple two step method. MMER had adequate magnetic responsiveness and thermal stability for rapid separation. MMER was used as magnetic solid phase extraction MSPE sorbent for enrichment of bile acids. MSPE combined with LCMS MS method was used to monitor 11 kind... |
S0021967319308349 | The application of supercritical fluid chromatography with mass spectrometric detection was compared towards generic reversed phase liquid chromatography and hydrophilic interaction liquid chromatography for the analysis of urine with regards of ionization performance and analyte identification . The different chromato... | SFC shows complementarity to RPLC and HILIC for metabolomics. In SFCMS the ESI response of metabolites can be tuned addition of make up. SFCMS analysis of urine metabolites using data independent acquisition SWATH MS . |
S0021967319308350 | Polysorbates a group of nonionic surfactants are widely used as pharmaceutic excipient . Their quality and safety are closely related to their profiles including composition structure proportion and polyoxyethylene polymerization degree . However due to complex composition and similar skeletons it is difficult and time... | A fast strategy for comprehensive profiling of polysorbates by UHPLCHRMS. A mathematic model to identify components by relationship between POE. and RT. A database of 853 detected and predicted components of polysorbates. |
S0021967319308362 | A moment analysis method is effective for the kinetic study of intermolecular interaction and solute permeation at the interface of spherical molecular aggregates . Association and dissociation rate constants of intermolecular interactions or the rate constants of interfacial solute permeation can be determined on the ... | Peak broadening in ACE and EKC was analyzed on the basis of moment theory. Influence of axial diffusion on band broadening was studied at different conditions. Influence of reaction kinetics and interfacial solute permeation was also studied. Validity of ACE and EKC experimental conditions in previous studies was discu... |
S0021967319308374 | Absolute quantification of B vitamins in milk is becoming imperative to correlate its impact on child human health . In today s world of changing food habits and environmental pollution there is concern if milk is what we think it to be . In the present work ultra high performance liquid chromatography mass spectrometr... | For the first time 21 B vitamins were quantified from miniscule volume of milk. Three different fresh milk samples from cow goat buffalo were compared. Total choline is the highest and vitamin B8 is the lowest in all milk samples. Inverse correlation between vitamin B2 and B5 was observed in milk samples. Total B vitam... |
S0021967319308386 | Mesoporous structured molecularly imprinted polymers combined with restricted access materials were synthesized in this work then RAM M MIPs were used as adsorbents in matrix solid phase dispersion to extract chlorpyrifos residues from soil . The RAM M MIPs with mesoporous structure increased adsorptive capacity and ac... | Mesoporous structured molecularly imprinted polymer M MIP was prepared. M MIP was modified with restricted access material RAM M MIP . RAM M MIP increased adsorptive capacity and accelerated adsorption rate. RAM M MIP showed good exclusion toward humic acid in soil. RAM M MIP with matrix solid phase dispersion for extr... |
S0021967319308398 | We propose a new capillary electrophoresis based open tubular immobilized enzyme microreactor and its application in acetylcholinesterase assays . The IMER is fabricated at the capillary inlet with the inner surface modified by a micropore structured layer . The use of IMER accomplishes the enzymatic reaction and separ... | Novel CE IMER is fabricated based on 3D micro porous layer open tubular column. Enhanced enzyme loading amount due to large surface area of micro porous layer. CE IMER exhibits excellent reproducibility and stability for enzyme assays. Successful application of CE IMER for detecting organophosphorus pesticide. |
S0021967319308416 | Accurate quantitation of aldosterone is critical for the clinical detection of hypertension . However no reference intervals for aldosterone in healthy volunteers and patients with hypertension have yet been established using highly sensitive methods with a wide linear range based on low plasma volumes . We developed a... | Reference intervals of aldosterone for healthy volunteers were established. Aldosterone levels in 888 hypertensive patients were measured. We prepared samples with 90L plasma and measured aldosterone using UPLCMS MS. Our UPLCMS MS method had higher sensitivity and wider linear range. |
S0021967319308428 | We report on a study on the use of 2D LC in industry wherein we maximized the peak capacity by serially coupling up to six 15cm long columns in the 1st dimension . For the considered aromatic amine oligomer sample the combination of reverse phase pentafluorophenyl column providing selectivity based on interaction in th... | 900 peaks in an industrial aromatic amine sample could be separated using 2D LC. Six coupled columns 2.6m150mm were used in. D. 1200bar instrumentation was used for each dimension. Peak capacity was over 10 000 was after correcting for undersampling and orthogonality. Going from 1 to 6 columns for. D leads to 940 inste... |
S0021967319308453 | Pentacyclic triterpenoids possess high biological activity including antitumor anti inflammatory antiviral and hepatoprotective properties and are widespread in a plant biomass . Due to significant differences in polarity and other physicochemical properties the simultaneous determination of different classes of PCTs b... | Mixed mode stationary phase was used for pentacyclic triterpenoids PCTs separation. Hydrophobic anion exchange and hydrophilic interactions contribute to retention. Selectivity of analysis was optimized by tuning the contributions of these mechanisms. Method for rapid analysis of monools diols and triterpenic acids was... |
S0021967319308477 | Fast gas chromatography that leverages the high chromatographic efficiency of narrow bore capillary column technology and temperature programming was successfully integrated with a third generation low void volume 3D printed two stage microreactor . Effective management of extra column effect and the capability to perf... | Post column reaction with flame ionization detection for one dimensional high speed gas chromatography. Elimination of multi component and multi level calibrations with carbon compound indendepent response. Compatibility with high resolution gas chromatographic columns having internal diameters as narrow as 100m. A thr... |
S0021967319308489 | Linolenic acid and its most important positional isomer linolenic acid are essential fatty acids . Therefore ALA and GLA rich edible oils hold great potential in human and animal nutrition as well as in nutraceutics and cosmetics . Quality control and nutritional validation of oil products is thus of increasing importa... | and Linolenic acids ALA and GLA are involved in several metabolic processes. ALA and GLA rich oils hold a potential as source of nutrition or in cosmetics field. An immobilized cellulose based CSP allows the RP separation of ALA GLA. The separation method was optimized and transferred to a LCMS MS platform. The propose... |
S0021967319308490 | The present study reports on the analysis of different factors affecting the magnitude of the peak capacity for intact protein separations conducted in gradient reversed phase liquid chromatography . Experiments were conducted using a 200m i.d . capillary styrene | The maximum peak capacity is achieved at a flow rate 20 x higher than the optimal van Deemter flow rate. The gradient volume has an important impact on overall peak capacity. The use of TFA as ion pairing agent leads to better mass loadability compared to FA. |
S0021967319308507 | In this work the suitability of gas chromatography mass spectrometry and liquid chromatography tandem mass spectrometry for the multi class determination of different families of neutral per and polyfluoroalkyl substances such as fluorotelomer olefins alcohols and fluorooctanesulfonamides and sulfonamido ethanols was i... | CI and a semi polar column provided the best GCMS conditions for all the compounds. Negative ion APCI provided the lowest LODs for the target compounds by LCMS. For the first time FTOs were ionised by atmospheric pressure ionisation sources. UHPLCAPCIMS MS method allowed the multi class determination of neutral PFASs. ... |
S0021967319308635 | Porous organic frameworks are an exciting emerging type of porous organic materials in which molecular building blocks are linked by covalent bonds . POFs usually have high thermal and chemical stability large surface area artificially regulated pore size distribution and abundant functional groups which are considered... | Porous organic frameworks POFs have high surface area and good stability. POFs are good alternatives for SPE sorbents or SPME MSPE coatings. Construction methods for POFs involved sorbent coating are summarized. Application of POFs involved methods for trace analysis are reviewed. Adsorption mechanism of POFs for inter... |
S0021967319308659 | The presence of a liquid stationary phase in liquidliquid chromatography allows for high versatility of operation as well as adaptability to different sample types and separation tasks . LLC also known as countercurrent chromatography or centrifugal partition chromatography offers the user a variety of operating modes ... | Standard extrusion flow reversal and continuous operating modes discussed. Critique and unification of published design equations and short cut models. Operating mode selection based on sample and separation goal. Preliminary separation design with simple equations. |
S0021967319308660 | A semi automated online platform was established successfully for preliminary screening of potential active flavonoids of traditional Chinese medicines in multicomponent system . Online coupling of the | The online coupling of Ussing chamber SPEHPLC platform was actualized at first time. The platform was used to screen the potential active flavonoids of TCMs. A total of 14 flavonoids were identified in HQ and HZ by UPLCMS MS. 12 flavonoids were screened as the active components of HQ and HZ by online platform. |
S0021967319308672 | The off flavor compounds geosmin and 2 methylisoborneol are well known to impact the quality of farmed freshwater fish species but little is known about off flavors in marine aquaculture . To begin addressing this knowledge gap a method for determining geosmin and 2 MIB using LC with atmospheric pressure chemical ioniz... | First LC APCI MS method for determining geosmin and 2 MIB was developed. Method is sensitive for 2 MIB but has limited applicability for geosmin due to losses. Aeration enhances volatilization of geosmin and 2 MIB from both pure and salt water. SBSE LC APCI MS with grab and in situ samples can determine 2 MIB in RAS wa... |
S0021967319308726 | Most adsorbent materials used for preconcentrating and thermally desorbing volatile and semi volatile organic compounds in portable or micro gas chromatographic instruments preferentially capture non polar or moderately polar compounds relative to more polar compounds . Here we explore the use of a known trigonaltripyr... | With the RTIL capacities for polar e.g. organophosphorus vapors increased 2.5 . With the RTIL capacities for non polar vapors decreased 1126. Trends in capacity were strongly correlated with analyte vapor pressure. Trends in capacity were not well described by LSER models. |
S002196731930874X | We report the discovery preliminary investigation and demonstration of a novel form of differential flow modulation for comprehensive two dimensional gas chromatography . Commercially available components are used to apply a flow of carrier gas with a suitable applied auxiliary gas pressure | A simple and effective means to accomplish differential flow modulation is introduced. Total transfer unit duty cycle is achieved concomitant with full modulation. Commercially available components are used to construct the low cost modulator. Narrow peaks are produced yielding high signal enhancements. Separations of ... |
S0021967319308751 | The gaseous phase analyses of volatile organic compounds are an important challenge especially when these organics are formed in high vacuum environments 10 | The analytical system designed for VOCs analysis from vacuum environments is herein optimized. A cryofocusing system in the GC oven enhanced chromatographic resolution and sensitivity. VOCs recovery was noticably improved by increasing system pressure using Argon. The optimized system was applied to the analysis of pho... |
S0021967319308763 | The main problem of poor water compatibility of molecularly imprinted polymers has been addressed in this study . A new facile and highly efficient approach was developed to obtain well defined hydrophilic molecularly imprinted polymer microsphere with excellent specific recognition ability toward Chenodeoxycholic acid... | Chenodeoxycholic acid adsorbent was prepared by molecular imprinting technology. Simulation time can be saved by splitting method with acceptable accuracy. CDCA MIPs with polyethylene glycol partially inhibited the nonspecific adsorption. The adsorbent showed good adsorption capacity for CDCA from crude bile. |
S0021967319308829 | Velvet antlers have been used as medicines and nutraceuticals for over 2000 years . Meanwhile deer antlers are the only mammalian organs that can fully regenerate after annual shedding . The antler formation and regeneration rely on the stem cells resident in antlerogenic periosteum transplantation of which can induce ... | Proteome profiling of antler stem cells from both extracellular and intracellular. Overexpression of sFRP4 and LUM in AP cells shows their role in antler growth. Shed more light on CM of antler stem cells as a new resource for bioactive molecular. |
S0021967319308830 | This study introduces micrometric carbon strands as a suitable fiber for headspace solid phase microextraction . Compared to previous supports carbon fibers have mechanical flexibility wide thermal expansion and a large surface area which is an important factor in headspace solid phase microextraction . The electrophor... | Micrometric carbon fibers CFs was introduced as a support for HS SPME. Electrophoretic technique was applied to modify surface of CFs with polypyrrole. Separation and analysis of the analytes was performed by GCMS. Effective parameters on extraction efficiency of 2 PF were studied and optimized. was used for extraction... |
S0021967319308854 | Natural products and traditional medicines are used for treatment of various diseases and also to develop new drugs . However identification of drug leads within the immense biodiversity of living organisms is a challenging task that requires considerable time labor and computational resources as well as the applicatio... | Analytical strategies employed in the natural products research are discussed. Dereplication and untargeted metabolomics workflows are decomposed to separate blocks. A von Koch star based classification of LCMS techniques is suggested. Recent advances of the analytical techniques for traditional medicine study are incl... |
S0021967319308878 | In counter current chromatography the hydrodynamic motion of a two phase solvent system in the column coil is very important . There are some previous visualization studies on CCC using stroboscopic photography . As CCC separation is a continuous liquid liquid extraction process observing the distribution and movement ... | Mixing zone was located near to the proximal key node and traveled through the column. Every parts of bobbin went through a mixing settle process. Phase distribution hardly changed once hydrodynamic has been established. The sample diffusion was quite fast after injection which might cause low efficiency. |
S002196731930888X | This work examines the separation dynamics of monoclonal antibody monomer dimer mixtures by frontal analysis using ceramic hydroxyapatite CHT Type I and Type II columns . The binding capacity and selectivity are dependent on the CHT type and salt concentration . While the rate of protein adsorption on CHT Type I is slo... | Frontal analysis separation of antibody monomer dimer mixtures on CHT columns. Adsorbent structure and mobile phase effects on transport and adsorption kinetics. Mechanistic model accounting for surface spreading describes column dynamics. |
S0021967319308891 | Biochemical and thermochemical processes are two pathways to convert lignocellulosic biomass into fuels and chemicals . Both conversion types produce aqueous complex samples containing many oxygenated chemical functions over a wide range of masses . Nowadays composition of these biomass products is still largely unknow... | Aqueous phases of a fast pyrolysis bio oil from sawdust and pretreated wheat straw. SEC on a low mass range 1000Da . On line SEC UV HRMS and chemical organization of chromatograms. Off line comprehensive SECRPLC UV HRMS. Fingerprints of samples through 2D multi detection contour plots. |
S0021967319308908 | A high performance liquid chromatography mass spectrometry technique hyphenated on line with an immobilized enzyme reactor was developed by the use of 3 known acetylcholinesterase inhibitors . This bioanalytical device allows qualitative comparison of the inhibitory strengths of AChE inhibitors . The AChE inhibitory st... | An innovative HPLC IMER MS bioanalytical device was established for high resolution screening HRS of AChE inhibitor. The relative inhibitory strengths of AChE inhibitor could be compared directly by comparing the inhibitor corresponding ACh peak area. A new natural AChE inhibitor dihydro latifaliumin C was firstly repo... |
S002196731930891X | A proteomic workflow for a simple loss less manual nano fractionation for low g sample amounts which avoids the need to dry down or transfer fractions to autosampler vials is shown to be feasible . It is demonstrated that the conventional procedure of drying samples down followed by reconstitution negatively affects th... | True loss less reversed phase fractionation using nano flow is feasible. Ability to collect fractions of 300nL manually. Simple dilute and shoot strategy to collect and analyze concatenated fractions. Improved number of peptide ID s through avoiding drying reconstitution steps. Mildly acidic reversed phase chromatograp... |
S0021967319308945 | In this study a novel phenylboronic acid polymeric monolith in polyether ether ketone tube was fabricated . The inner wall of PEEK tube was modified with mussel inspired polydopamine layer to firmly bond PBAPM so as to avoid the outflow of PBAPM from PEEK tube and improve the service life and application scope of PBAPM... | A hydrophobic phenylboronic acid polymeric monolith PBAPM was fabricated in PEEK tubes. The PBAPM was applied in SPME of SAs based on hydrophobic interaction and BN coordination. PBAPM SPME combined with UPLCMS MS was used to monitor 10 kinds of SAs from aqueous samples. Using only 1mL of water samples limit of quantit... |
S0021967319308957 | Although around 90 years have passed since Richards and Loomis developed the first experiments in sonochemistry ultrasound is still awakening interest in the scientific community in particular in the Analytical Chemistry field as a result of the high number of benefits achieved which are also in accordance with Green A... | The different applications of US in analytical chemistry are overviewed. Fundamentals and more traditional applications are also presented. US assisted synthesis of nanomaterials comprise a high number of applications. Sonoelectroanalytical sensors and new spectroscopic approaches are also of relevance. |
S0021967319308969 | The simultaneous use of nitrite and sorbate as preservatives in meat products may produce mutagenic compounds such as the ethylnitrolic acid and 2 methyl 1 4 dinitro pyrrole . We developed a sensitive analytical method with high metrological reliability . After assessing several extraction approaches and chromatographi... | Several sample preparation and chromatographic approaches were assessed. A modified QuEChERS and RP C. LCESI MS MS approach was fully validated. This method can quantitate ENA and DNMP traces in various processed meats. Positive results for ENA and DNMP carcinogens in meats were obtained. |
S0021967319308982 | Quantitative structure retention relationships analysis was applied to investigate the molecular retention mechanism of proteinogenic and non proteinogenic amino acids on the amino acid and peptide silica stationary phases . Twelve stationary phases with chemically bonded amino acids of different types glycine alanine ... | The amino acids retention mechanism on the amino acid based packings was investigated. The QSRR was performed on materials differing in type length of amino acid sequence. Analysis showed that electrostatic interactions are prominent in retention process. Formation of hydrogen bonds is characteristic feature for peptid... |
S0021967319308994 | Tandem mass spectrometry in particular high resolution MS MS is able to provide element compositions and substructures for the detected signals . However it is still challenging to configure the whole structures | Optimum collision energy is an inherent molecular descriptor of a given compound. Optimum collision energy facilitates confidently structural annotation of CADs. Online energy resolved mass spectrometry was developed to acquire breakdown graphs for bond dissociations of interest. Optimum collision energy tightly correl... |
S0021967319309021 | A fully continuous downstream process represents one of the most interesting novel purification approaches in the biosimilars industry because it would enhance the production output while reducing the costs of complex biopharmaceuticals . Since it generally involves several chromatographic steps the selection of approp... | Implementation of membrane adsorbers for continuous impurity removal from Mabs. Displacement plays important role in determination of operating conditions. Different anion exchange adsorbers removes same HCPs but to different level. |
S0021967319309033 | In this work tetraalkylammonium amino acid ionic liquids were first applied to non aqueous capillary electrophoresis to establish synergistic systems with a conventional chiral selector native cyclodextrin . Excellent enantioseparations of some dansyl amino acid samples were achieved . A series of comparison experiment... | Chiral ILs were first applied to NACE for enantioseparation. The direct enantioselectivity of TAA AAILs in CE was observed for the first time. Several interesting results were observed in the NACE compared with aqueous CE. Excellent enantioseparations were achieved for all Dns AAs. |
S0021967319309045 | A sensitive fast eco friendly ultrasound assisted liquidliquid microextraction in combination with hydrophobic deep eutectic solvent method was developed to preconcentrate and extract sulfonamides in fruit juices prior to high performance liquid chromatographic analysis . The DES was synthesized with trioctylmethylammo... | A new eco friendly hydrophobic deep eutectic solvent DES was synthesized. The DES present excellent extraction efficiency for sulfonamides SAs . Hydrophobic DESs based on UA LLME combined with HPLC UVD method was developed. The method was applied in the determination of SAs from fruit juices. |
S0021967319309264 | When determining contaminants from environmental samples sample treatment plays an important role . Among the different extraction techniques available solid phase extraction has been commonly used for liquid samples as well as for solid samples after an extraction technique amenable for solids . The broad applicabilit... | Mixed mode sorbents have been widely applied in the environmental field. They are used to both enrich contaminants and clean up interferences from complex samples. The optimization of the SPE protocol mainly in terms of pHs is important to establish ionic interactions. Different approaches single or combined cartridge ... |
S002196731930929X | Magnetic molecularly imprinted polymers combine nanotechnology and molecular imprinting technology to offer selective and tunable enrichment for water analysis . In this paper a selective sorbent was prepared by surface polymerization onto magnetic Fe | A pseudo template MMIP for PAHs was synthesized using RAFT polymerization. RAFT MMIP was used for dispersive solid phase extraction of PAHs from water. CCD and desirability function were used for simultaneous optimization of DSPE of 16 PAHs. MMIP DSPE showed excellent selectivity for adsorption of PAHs. MMIP DSPE was u... |
S0021967319309306 | A device with four parallel channels was designed and manufactured by 3D printing in titanium . A simple experimental setup allowed splitting of the mobile phase in four parallel streams such that a single sample could be analysed four times simultaneously . The four capillary channels were filled with a monolithic sta... | A device with four parallel channels was manufactured by 3D printing in titanium. A simple experimental setup allowed splitting of the mobile phase in parallel streams. Capillary channels were filled with a monolithic stationary phases. Miniaturized electrochemical detectors were integrated in the device. Dopamine was ... |
S0021967319309318 | Current metabolomics research utilizes liquid chromatography tandem mass spectrometry analyses to handle biological samples that contain thousands of quantifiable metabolites . However no LCMS MS condition is suitable for directly analyzing all metabolites . An alternative approach is to derivatize metabolites to impar... | Extensive cross comparisons conducted for Dansyl OPA Fmoc Dabsyl and Marfey s reagent. Elution pH in LCMS analysis greatly affects the performance of derivatization strategies. With. extract Dansyl labeling gives the greatest number identified compounds. With. extract each reagent yields a rather distinct compound cove... |
S002196731930932X | Our previous studies on protein adsorption to the anion exchangers of poly grafted Sepharose FF found that both adsorption capacity and uptake rate of bovine serum albumin increased greatly when the PEI grafting density reached over a critical ionic capacity due to the 3D protein binding and occurrence of chain deliver... | DEAE groups are introduced to the gel surface of poly ethylenimine PEI Sepharose. Uptake capacity and rate increase with adding DEAE at PEI charge density 600mmol L. Capacity and rate change inappreciably with adding DEAE at charge density 600mmol L. DEAE PEI resin exhibits higher uptake rate than PEI resin at similar ... |
S0021967319309331 | Over the past decade significant progress has been found in the upstream production processes shifting the main bottlenecks in current manufacturing platforms for biopharmaceuticals towards the downstream processing . Challenges in the purification process include reducing the production costs developing robust and eff... | Rapid and low cost method to evaluate lysis efficiency of different solutions. Simple microscale optimization of a continuous and modular downstream process. Higher than 90 lysis efficiencies obtained for different solutions and conditions. Integrable with other microfluidic modules mimicking different unitary operatio... |
S0021967319309380 | Estimation of the properties of mesoporous aluminosilicates in various environments is important when assessing their sorption capacity . Using inverse liquid chromatography Hansen solubility parameters and linear free energy relationship parameters were calculated to determine the properties of aluminosilicates in a p... | Surface properties of aluminosilicates can be estimate using liquid chromatography. The nature of the solvent affects the surface properties of aluminosilicates. Water reduces ability of the aluminosilicates surface to interactions. |
S0021967319309392 | The facile enrichment of glycopeptides or glycoproteins poses great challenges for glycoproteomic research . In this study a novel hydrophilic material named zwitterionic hydrophilic L cysteine derivatized straticulate C | A zwitterionic hydrophilic L Cysteine derivatized straticulate C. composites were synthesized. The materials show high selectivity low detection limit high enrichment efficiency and high recovery rate for N glycopeptides. Up to 1809 N glycopeptides and 876 N glycoproteins could be enriched from mililiters of human urin... |
S0021967319309410 | In this study a reliable and novel coupling of pipette tip micro solid phase extraction with corona discharge ionization ion mobility spectrometry was developed for on site fast detection of benzodiazepines in dietary supplements . The poly monoliths fabricated in pipette tips through an in situ polycondensation reacti... | PT SPE was coupled with CD IMS for the first time. In tip poly St DVB monolith was used for extraction BZDs in dietary supplements. High throughput sampling can be achieved by using multichannel pipettor. The method has potential for on site environmental and public security monitoring. |
S0021967319309422 | The analysis of heparan sulfate disaccharides poses a real challenge both from chromatographic and mass spectrometric point of view . This necessitates the constant improvement of their analytical methodology . In the present study the chromatographic effects of solvent composition salt concentration and salt type were... | Separation of heparan sulfate disaccharides using self packed HILIC WAX columns. Detailed mapping of solvent composition and salt concentration effects. Different elution behavior for various HS disaccharides in HILIC WAX. Wide linearity range with ammonium formate gradient method 2.5fmol2pmol . Sulfation pattern can b... |
S0021967319309434 | The advent of supercritical fluid chromatography in the 90s has changed preparative liquid chromatography . SFC is an improved way for separating chiral compounds during drug discovery processes yielding upwards of one hundred grams of pure enantiomers or during clinical trials requiring higher quantities . | Propranolol is separated by SFC on Chiralpak AD H. Four columns of different dimension were used. Column dimension impacts production rate and productivity. Column dimension does impact solvent use and E Factor. The utilization of the shortest column leads to the highest productivity. |
S0021967319309446 | As short chain chlorinated paraffins are listed on several monitoring programs validated methods are essential . However their complexity and the lack of commercially available certified reference materials hinder a proper validation of methods . Instead one method is usually validated by evaluating performances and re... | SCCPs were determined in candidate reference materials for potential certification. Determination involved four methods with different principles. The suitability of the GCECNILRMS method for SCCP determination is doubtful. Using spiked samples or solutions might not always be ideal for method validation. The results p... |
S002196731930946X | In this work the Dubsky s model proposed for Capillary Electrophoresis enantioseparation systems with a mixture of chiral selectors was applied to the rapid optimization of the simultaneous enantiomeric separation of a multicomponent mixture of six phenoxy acid herbicides using a dual system of two cyclodextrins CD and... | Dubsky s etal. model for CE enantioseparations with dual systems was applied. Modeling based optimization of chiral separation of multicomponent mixtures. Quick optimization of simultaneous chiral separation of phenoxy acid herbicides. Improved resolution between enantiomers and among consecutive compounds. Fast and ef... |
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