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Micellar electrokinetic defined

Mass distribution ratio (in micellar electrokinetic chromatography), /cmekc — Defined as ... [Pg.418]

Mass distribution ratio in microemulsion electrokinetic chromatography, /cMeekc — Defined analogously to the -> mass distribution ratio (in - micellar electrokinetic chromatography), kMEKC, by replacing terms for micelles with corresponding terms for micro emulsion. [Pg.418]

In micellar electrokinetic chromatography and microemulsion electroMnetic chromatography, the retention factor kf of a neutral compound is defined as [Muijselaar, Claessens et al., 1994]... [Pg.137]

The separation number (or Trennzal) is a special case of the peak capacity. It is widely used as a column quality test in gas chromatography [217-219] and to a limited extent in micellar electrokinetic chromatography [220,221]. It is defined as the number of peaks that can be placed between the peaks of two consecutive homologous standards with z and z-i-1 carbon atoms and separated with a resolution of Rs = 1.177. It represents the... [Pg.57]

The apparent electrophoretic mobility of an analyte in micellar electrokinetic chromatography depends on three factors the electroosmotic mobility for the system the fraction of analyte in the electrolyte solution and its electrophoretic mobility and the fraction of analyte in the pseudostationary phase, and the electrophoretic mobility of the micelles (assuming that the mobility of the analyte-micelle complex is the same as the micelle). If we introduce the chromatographic retention factor, defined as the ratio of the number of analyte molecules in the pseudostationary phase to the number in the... [Pg.645]

The theories describing micellar electrokinetic chromatography (MEKC), capillary zone electrophoresis (CZE), and capillary gel electrophoresis (CGE) separations of small molecules and biopolymers are described in other chapters of this book and will not be discussed here. Here, we will briefly touch upon the theoretical aspects of the electrophoretic mobility of organelles, foregoing an in depth discussion of electrokinetic theory that can be found elsewhere in original publications and comprehensive reviews. The electrophoretic mobility (/ue) is defined as... [Pg.586]

Micellar electrokinetic chromatography (MEKC) is a particular EKC mode where the secondary phase is composed by micellized surfactant (MEKC is discussed in detail in Chapter 3 by Terabe). Solute differential retention occurs as a result of a partition mechanism between a dispersed phase defined by the total volume of micelles and the remaining aqueous phase. MEKC modes of elution comprise normal, restricted, and reversed MEKC, based on the relative migration of the analyte and secondary phase apparent velocity. [Pg.915]


See other pages where Micellar electrokinetic defined is mentioned: [Pg.140]    [Pg.16]    [Pg.17]    [Pg.58]    [Pg.644]    [Pg.652]    [Pg.776]   
See also in sourсe #XX -- [ Pg.55 , Pg.56 , Pg.57 ]




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