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Determination of nikethamide by micellar electrokinetic chromatography
Biomedical Chromatography, 2019AbstractA simple, fast, sensitive and reproducible micellar electrokinetic chromatography (MEKC)–UV method for the determination of nikethamide (NKD) in human urine and pharmaceutical formulation has been developed and validated. The method exhibits high trueness, good precision, short analysis time and low reagent consumption.
Krystian Purgat +4 more
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Microemulsion and micellar electrokinetic chromatography of steroids
Journal of Chromatography B: Biomedical Sciences and Applications, 1996A mixture of ten steroids was separated by microemulsion and micellar (SDS and glycodeoxycholate) electrokinetic chromatography systems. Separations were done on a 50 cm (to the detector) x 50 microns I.D. fused-silica capillary. Complete separation of all the test compounds in the micellar mode was obtained with glycodeoxycholate (50 mM) in 25 mM ...
L, Vomastová, I, Miksík, Z, Deyl
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Microemulsion electrokinetic chromatography: comparison with micellar electrokinetic chromatography
Journal of Chromatography A, 1992Abstract The fundamental characteristics of microemulsion electrokinetic chromatography (MEEKC) were studied in comparison with micellar electrokinetic chromatography (MEKC). A microemulsion consisting of heptane-sodium dodecyl sulphate-butanol-buffer (pH 7.0) (0.81:1.66:6.61:90.92) was mainly employed.
Shigeru Terabe +3 more
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Micellar electrokinetic chromatography-mass spectrometry
Journal of Chromatography A, 1997The combination of micellar electrokinetic chromatography (MEKC) with mass spectrometry (MS) is very attractive for the direct identification of analyte molecules, for the possibility of selectivity enhancement, and for the structure confirmation and analysis in a MS-MS mode.
L, Yang, C S, Lee
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Micellar Electrokinetic Capillary Chromatography of Proteins
Analytical Biochemistry, 1993Separations of model proteins obtained under denaturing conditions in the presence of micellar concentrations of ionic surfactants displayed high resolution and efficiency using either bare silica or C18-derivatized silica capillaries. Superior migration time reproducibility was achieved through the use of the C18-derivatized capillaries (run-to-run ...
M A, Strege, A L, Lagu
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Mixed micellar electrokinetic chromatography of corticosteroids
ELECTROPHORESIS, 1994AbstractMixed micellar electrokinetic chromatography (MMEKC) using mixtures of bile salt surfactants and/or sodium dodecyl sulfate (SDS) was employed to separate a group of corticosteroids. Resolution in electrokinetic chromatography (EKC) can be greatly enhanced by the use of mixed micellar systems due to the fact that the composition of the mixed ...
J G, Bumgarner, M G, Khaledi
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Separation of estrogens by micellar electrokinetic chromatography
Journal of Chromatography A, 1995Capillary electrophoresis of the sex hormone estrogens using different buffer components was investigated. Free zone electrophoresis with 10 mM phosphate buffer (pH 11.5) or 10 mM phosphate buffer with 10-20% methanol was not effective in separating the ten estrogens used in this study.
K C, Chan +3 more
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Micellar Electrokinetic Chromatography
2013Since the introduction of micellar electrokinetic chromatography by Terabe, several authors have paid attention to the fundamental characteristics of this separation method. In this chapter the theoretical and practical aspects of resolution optimization, as well as the effect of different separation parameters on the migration behavior are discussed ...
Edward Bald, Paweł Kubalczyk
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Micellar electrokinetic chromatography of polyamines and monoacetylpolyamines
Journal of Chromatography A, 2001A selective procedure for qualitative and quantitative analysis of ten polyamines by micellar electrokinetic chromatography (MEKC) was developed. Benzoylated polyamines and acetylpolyamines in micellar phase of SDS (10 mM) were separated at 25 degrees C by 20 mM borate buffer pH 8.5, containing 8% ethanol, with an applied voltage of 25 kV (5 microA ...
G, Taibi +4 more
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Micelle Stacking in Micellar Electrokinetic Chromatography
Analytical Chemistry, 2007In order to understand the role of stacked micelles in sample preconcentration, it is necessary to understand the factors that contribute to the micelle stacking phenomenon. Various MEKC background electrolyte (BGE) solutions were prepared in the presence of Sudan III in order to monitor the micelle stacking phenomenon in the anionic sodium dodecyl ...
Braden C, Giordano +4 more
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