Electrophoresis micellar electrokinetic chromatograph

Chromatographic and related electrophoretic methods for the separation of transition metal complexes or their ligands were reviewed . Micellar electrokinetic chromatography (MEKC) presents a new development in the field of capillary zone electrophoresis (CZE). The use of micellar solutions expands the application of CZE to electronically neutral solutes, as well as charged ones. Thus, electrically neutral / -diketonates Cr(dik)3, Co(dik)3, Rd(dik)3, Pt(dik)2 and Pd(dik)2 were separated by CZE in micellar solutions of sds. A linear log-log relationship was found between the distribution coefficient and the partition coefficient of the complex between dodecane and water, which was used for prediction of both the distribution coefficients and the migration times of different metal complexes . 

Various papers related to the simultaneous determination of creatinine and uric acid can be found in the hterature. Several authors have developed capillary zone electrophoresis (CZE) methods for simultaneous analysis of these compounds in urine. The CE analysis of these renal markers offers some advantages when compared with chromatography, such as shortened separation time, reduced reagent consumption, and increased resolution. Capillar micellar electrokinetic chromatography has been applied to the simultaneous separation of creatinine and uric acid in human plasma and urine. However, chromatographic techniques are widely accepted for the determination of these compounds. Reversed-phase and ion... 

S. Terabe, Micellar electrokinetic chromatography, in Capillary Electrophoresis Technology (N. A. Guzman, ed.). Chromatographic Science Series Vol. 64, Marcel Dekker, Inc., New York, 1993 Chap. 2. 

However, additives are normally combined to complement and promote their activity as a result, it is necessary to develop analytical methods for the determination of additive mixtures. Although some spectroscopic and chemical methods are used, it is preferable to use separation methods for this purpose. Most analytical methods used to determine food additives are based on chromatographic techniques, although several recent papers have demonstrated the usefulness of electrophoresis for the analysis of food colors, sweeteners, antioxidants, and/or preservatives. The separation of food colors has received most attention, with a number of articles published on both capillary zone electrophoresis and micellar electrokinetic chromatography. 

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