Results 171 to 180 of about 783,055 (207)
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Pharmaceutical Analysis Using Micellar Electrokinetic Capillary Chromatography
Journal of Chromatographic Science, 1988The potential utility in pharmaceutical analysis of a capillary electrokinetic separation technique that employs a micellar "pseudo-stationary phase" is discussed and illustrated. Chromatograms of separations of vitamin metabolites and derivatized amino acids are presented to illustrate the high efficiency of the technique and the ability to ...
D F, Swaile +3 more
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Journal of Chromatography A, 2001
The purpose of the contribution is to show how software and the internet have changed the way in which we carry out research, and what additional possibilities these new resources and tools provide. The internet and e-mail broaden our horizon for cooperation.
Reijenga, J.C., Lee, H.K.
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The purpose of the contribution is to show how software and the internet have changed the way in which we carry out research, and what additional possibilities these new resources and tools provide. The internet and e-mail broaden our horizon for cooperation.
Reijenga, J.C., Lee, H.K.
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Journal of Chromatography A, 1993
The capacity factor of bilirubin is determined by micellar electrokinetic capillary chromatography (MECC) techniques in three different surfactant systems. The capacity factor of bilirubin in cholic acid, taurocholic acid, and taurochenodeoxycholic acid solutions are compared to each other as a function of pH.
A D, Harman +5 more
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The capacity factor of bilirubin is determined by micellar electrokinetic capillary chromatography (MECC) techniques in three different surfactant systems. The capacity factor of bilirubin in cholic acid, taurocholic acid, and taurochenodeoxycholic acid solutions are compared to each other as a function of pH.
A D, Harman +5 more
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Journal of Chromatography A, 1995
Linear solvation energy relationships (LSERs) were used to evaluate and characterize chemical interactions that influence retention behavior in micellar liquid chromatography (MLC) and micellar electrokinetic capillary chromatography (MEKC). High correlations were found between solutes' capacity factors in MLC and in MEKC, as well as binding constants ...
S, Yang, M G, Khaledi
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Linear solvation energy relationships (LSERs) were used to evaluate and characterize chemical interactions that influence retention behavior in micellar liquid chromatography (MLC) and micellar electrokinetic capillary chromatography (MEKC). High correlations were found between solutes' capacity factors in MLC and in MEKC, as well as binding constants ...
S, Yang, M G, Khaledi
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Chiral surfactants in micellar electrokinetic capillary chromatography
ELECTROPHORESIS, 1997AbstractMost biologically active molecules contain one or more chiral centres, giving rise to stereoisomeric forms which can behave differently in a chiral environment. Thus, only one of the enantiomers may show the desired physiological activity, whereas the other enantiomers may either be considerably less active or even show undesireable side ...
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Herbicide analysis by micellar electrokinetic capillary chromatography
Journal of Chromatography A, 1996Capillary electrophoresis with ultraviolet detection (CE-UV) and laser-induced fluorescence detection (CE-LIF) was used for analysis of a group of herbicides that have widespread use in the USA. CE-UV was employed for simultaneous determination of atrazine, simazine, alachlor and metolachlor in water.
Kumar V. Penmetsa +2 more
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Evaluation of micellar electrokinetic capillary chromatography
Korean Journal of Chemical Engineering, 1989Micellar Electrokinetic Capillary Chromatography employs electroosmotically pumped micellar mobile phases to achieve very efficient separations, A mixture of 14 modified nucleic acid components can be separated with 0.0081 and 0.075 M sodium dodecyl sulfate in phosphate/borate buffer, 10 kv of separation voltage, and a 68.5 cm x 0.06 mm I.D.
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Column efficiency in micellar electrokinetic capillary chromatography
Analytical Chemistry, 1987Experimental factors that influence column efficiency in micellar electrokinetic capillary chromatography were studied. Parameters, such as applied voltage, column dimensions, and concentrations of buffer and surfactant in the mobile phase, are found to influence efficiency. Van Deemter-like plots of plate vs.
Michael J. Sepaniak, Roderic O. Cole
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Instrumental developments in micellar electrokinetic capillary chromatography
Journal of Chromatography A, 1989Abstract Two instrumental developments in micellar electrokinetic capillary chromatography are reported. A solvent delivery system capable of generating continuous linear-, concave-, and convex-shaped solvent gradients is shown to have a dramatic effect on the chromatographic profiles obtained in the separation of a mixture of fluorescently-labeled ...
Michael J. Sepaniak +2 more
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Analysis of Anthraquinones by Micellar Electrokinetic Capillary Chromatography
Phytochemical Analysis, 1997A micellar electrokinetic capillary chromatographic method for the separation of anthraquinone positional isomers was established. The running electrolytes used in this method were 0.03 M sodium dodecyl sulphate (SDS) in 0.03 M borate buffer (pH 9) containing 10% acetonitrile for dihydroxy- and dihydroxy-methoxy-methylanthraquinones, 0.08 M SDS in 0.03
Junko Koyama +2 more
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