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Configuration factor chromatography

Compressibility factor, 61-63 Configuration factor, 33 Countercurrent chromatography, 74 Critical point data, 250 Cryogenic GC, 149 Cyclodextrin, 266... [Pg.6]

The co-adsorption of neutral and/or ionic species plays a dominant role in the retention characteristics of solutes in electrochemically modulated chromatographic columns. The electrochemically modulated liquid chromatography is a new and promising technique, which uses conductive stationary phases and the whole column is configured as an electrochemical cell. ° If the mobile phase consists of the polar solvent S, an inert electrolyte, the organic modifier B and the eluite A, the capacity factor, k, for eluite A is given by ° ° ... [Pg.160]

In complexation gas chromatography, semipreparative separations of spiroketals (among them pheromones) have been reported. The preparative invertomer separation of l-chloro-2,2-dimethylaziri-dine permitted the determination of chiroptical data, absolute configuration and inversion barrier. Very large separation factors a were observed for saturated hydrocarbons (cis- and tra s-pinane, camphene) on a mixture of a-cyclodextrin in form-amide impreg/nated on celite. The preparative enantiomer separation of a-ionone on (18) and of all-trans-perhydrotriphenylene on (25) has been described. The large separation factors observed for the inhalational anesthetics enflurane, isoflurane, and desflurane on (18) allowed their enantiomer separation for subsequent biomedical trials and acquisition of chiroptical data. The continuous preparative enantiomer separation of enflurane and... [Pg.1968]

The determination of the retention factors k ] of new phosphoramidic acid derivatives by reversed-phase HPLC was mentioned earlier in a QSSR study, also the configurational stability of residual phosphanes were evaluated by both dynamic HPLC on a chiral phase and dynamic H and P NMR spectroscopy. The determination of di-n-hutyl phosphate (DBP) in spent nuclear solvents was also compared by using both gas-(GC) and ion chromatography (IC) methods,and it was shown that ion chromatography was much faster than gas chromatography since it involves minimum steps and no derivatization of DBP. [Pg.441]

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See also in sourсe #XX -- [ Pg.471 ]



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Chromatography Configurations

Chromatography factors

Configuration factor

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