Electrokinetic chromatography
Top PDF Electrokinetic chromatography:
Separation of a group of N phenylpyrazole derivatives by micellar electrokinetic chromatography: application to the determination of solute micelle association constants and estimation of the hydrophobicity
... micellar electrokinetic chromatography (MEKC), a sur- factant at a concentration above its critical micellar con- centration (CMC) is added to the separation buffer of a capillary electrophoresis system ...
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Retention modeling and resolution optimization for a group of N phenylpyrazole derivatives in micellar electrokinetic chromatography using empirical and physicochemical models
... micellar electrokinetic chromatography (MEKC) is a complex task due to the great number of variables affecting the pro- cess: pH, type and concentration of buffer, surfactant, and organic ...
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Enantiomeric separation of the chiral phenoxy acid herbicides by electrokinetic chromatography Application to the determination of analyte selector apparent binding constants for enantiomers
... In recent years, chiral separations by capillary electro- phoresis (CE) have witnessed a steady growth, which has been outlined by several recent review articles [14± 18]. In this technique, enantiomeric separation can ...
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Fast enantiomeric separation of basis drugs by electrokinetic chromatography Application to the quantitation of terbutaline in a pharmaceutical preparation
... Electrokinetic chromatography (EKC) using micelles of bile salts alone or mixed with sodium dodecyl sulfate (SDS) and neutral, anionic, or cationic cyclodextrins (CDs) in the separation buffer has been ...
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Rapid enantiomeric separation of polychlorinated biphenyls by electrokinetic chromatography using mixtures of neutral and charged cyclodextrin derivatives
... Electrokinetic chromatography with cyclodextrin derivatives (CD-EKC) was used to achieve the rapid enantiomeric separation of chiral polychlorinated biphenyls ...
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Monitoring the stereoselectivity of biodegradation of chiral polychlorinated biphenyls using electrokinetic chromatography
... Nevertheless, electrokinetic chromatography (EKC) using a dual cyclodextrin system has recently been employed for the rapid chiral separation of thirteen of the 19 PCBs stable at room temperature (PCBs 45, ...
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Fast enantiomeric separation of uniconazole and diniconazole by electrokinetic chromatography using an anionic cyclodextrin: application to the determination of analyte selector apparent binding constants for enantiomers
... Chiral separations are one of the most promising topics in the field of capillary electrophoresis (CE), which has been outlined by several recent review articles [3±8]. In CE, chiral separations can be achieved using ...
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Enantiomeric separation of a group of chiral dihydropyridines by electrokinetic chromatography
... Electrokinetic chromatography (EKC) was employed to achieve the enantiomeric sepa- ration of a group of chiral 1,4-dihydropyridines (DHPs) with pharmacological ...
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A sensitive micellar electrokinetic chromatography laser induced fluorescence method to analyze chiral amino acids in orange juices / Carolina Simó, Coral Barbas and Alejandro Cifuentes
... micellar electrokinetic chromatography with laser-induced fluorescence (MEKC - LIF) to separate and detect L - and D -amino acids ( L -aa and D -aa) previously derivatized with fluorescein isothiocianate ...
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![Analysis of antioxidants from orange juice using countercurrent supercritical fluid extration, micellar electrokinetic chromatography and reverse phase HPLC / C Barbas [et al ]](https://data02.123doks.com/thumbv2/123dok_es/000/575/575507/cover.webp)
Analysis of antioxidants from orange juice using countercurrent supercritical fluid extration, micellar electrokinetic chromatography and reverse phase HPLC / C Barbas [et al ]
... liquid chromatography (LC) with mass spectrometry (MS) and diode array detection (DAD) has been already demonstrated to identify, for example, nonvolatile components in lemon peel ...liquid chromatography ...
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Separation and online preconcentration by multistep stacking with large volume injection of anabolic steroids by capillary electrokinetic chromatography using charged cyclodextrins and UV absorption detection
... 3.2 Online preconcentration by single stacking Since the selected separation buffer contained anionic CDs with reverse migration in the normal polarity mode, the following steps were con[r] ...
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Enantioselective separation of the sunscreen agent 3 (4 methylbenzylidene) camphor by electrokinetic chromatography: Quantitative analysis in cosmetic formulations
... 3.3 Applications The chiral method developed for the analysis of MBC enantiomers was applied for two different purposes: i to quantitate the MBC enantiomers in two commercial cosmetic cr[r] ...
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Desarrollo e implementación de una metodología para la detección de pesticidas organoclorados mediante cromatografía de gases acoplada a espectometría de masas
... It has developed a method that can identify twenty four organochlorine pesticides by gas chromatography coupled with mass spectrometry. Of tests we determined that the best operating conditions were: Oven: 25 ...
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Purification of anisakis simplex antigen by affinity chromatography
... Abstract Inorder to improve the speci®city and sensi- tivity of the techniques for the diagnosis of human anisakidosis, a method of anity chromatography for the puri®cation of species-speci®c antigens from ...
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Analytical study on ethephon residue determination in water by ion pairing liquid chromatography/tandem mass spectrometry
... Analytical study on ethephon residue determination in water by ion-pairing liquid.. chromatography/tandem mass spectrometry.[r] ...
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Desarrollo de un método por cromatografía de líquidos de alta resolución para análisis de aminoácidos en ingredientes utilizados en la alimentación animal
... Una técnica moderna en el análisis de aminoácidos es la Cromatografía de Líquidos de Alta Resolución, o High Performance Liquid Chromatography, (HPLC), que consiste en la elución difer[r] ...
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... (the electrokinetic or slip plane) located somewhere in the liquid such that the portion of the ionic atmosphere between the solid and that surface is absolutely ...
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TítuloExperimental Study and ANN Dual Time Scale Perturbation Model of Electrokinetic Properties of Microbiota
... hydrophobicity) of rumen microbes based on the combinatorial conditions of the ST and SSA in the processes of in vitro fermentation (Liu et al., 2016, 2017a). However, for another key factor of physic-chemical properties ...
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Modeling of Electrokinetic Remediation Combining Local Chemical Equilibrium and Chemical Reaction Kinetics
... This work has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778045. Part of this work was supported financially by the ...
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Ordered mesoporous silica functionalized with ß-cyclodextrin derivative for optical isomer separation of flavanones and flavanone glycosides by nano-liquid chromatography and capillary electrochromatography
... Silica-based materials are very appealing for analytical applications because they are relatively inexpensive, thermally stable, chemically inert and biocompatible. The discovery of ordered mesoporous silicas (OMSs) in ...
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