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Supercritical fluid chromatography retention factor

Figure 33-2 shows plots of plate heights // as a function of average linear velocity u in cm/s for high-performance liquid chromatography and supercritical-fluid chromatography. In both cases, the solute was pyrene, and the stationary phase was a reversed-phase octadecyl silane maintained at 40°C. The mobile phase for HPLC was acetonitrile and water, while for SFC the mobile phase was carbon dioxide. These conditions yielded about the same retention factor (k) for both mobile phases. Note that the minimum in plate height occurred at a flow rate of 0.13 cm/s... [Pg.999]

A further evaluation of the CB-DNP was reported by Gahm of Amgen using supercritical fluid chromatography (SFC) [27]. He concluded that inclusion com-plexation was the primary factor in retention and enantioselectivity. Better enantioseparation, as well as peak shape together with the reversal of elution order, makes CD-based CSPs unique and complimentary to the more commonly used jt-basic amylose and cellulose columns. [Pg.68]

See other pages where Supercritical fluid chromatography retention factor is mentioned: [Pg.609]    [Pg.436]    [Pg.245]    [Pg.339]    [Pg.337]    [Pg.581]    [Pg.582]    [Pg.585]    [Pg.587]    [Pg.593]    [Pg.611]    [Pg.128]    [Pg.358]    [Pg.111]    [Pg.998]    [Pg.10]    [Pg.62]    [Pg.585]    [Pg.609]    [Pg.23]   
See also in sourсe #XX -- [ Pg.173 ]



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