Title of article :
Efficiency for unretained solutes in packed column supercritical fluid chromatography: I. Theory for isothermal conditions and correction factors for carbon dioxide
Author/Authors :
Poe، نويسنده , , Donald P.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
10
From page :
152
To page :
161
Abstract :
A general theory for efficiency of nonuniform columns with compressible mobile phase fluids is applied to the elution of an unretained solute in packed-column supercritical fluid chromatography (pSFC). The theoretical apparent plate height under isothermal conditions is given by the Knox equation multiplied by a compressibility correction factor f1, which is equal to the ratio of the temporal-to-spatial average densities of the mobile phase. If isothermal conditions are maintained, large pressure drops in pSFC should not result in excessive efficiency losses for elution of unretained solutes.
Keywords :
efficiency , Supercritical fluid chromatography , Pressure drop
Journal title :
Journal of Chromatography A
Serial Year :
2005
Journal title :
Journal of Chromatography A
Record number :
1524112
Link To Document :
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