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Analytical supercritical fluid extraction

✍ Scribed by Keith D. Bartle

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
112 KB
Volume
2
Category
Article
ISSN
1040-7685

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✦ Synopsis

he introduction of SFC into the armory of the separation scientist is now com-T plete; the targeting of microcolumn SFC on involatile and thermolabile analytes, especially when high resolution is required, has led to the development of a clear analytical niche. The numerous applications of SFC now reported are based, moreover, on a secure theoretical foundation. Increasingly, supercritical fluids are also being employed as solvents in the extraction of and cleanup of analytes from complex matrices, but here theory has lagged.

The replacement of extraction by liquid solvents (LSE) by SFE is gathering momentum: the long time scale of LSE (hours or even days) required to produce a dilute extract, often in a hazardous solvent, has sent many analysts to SFE. The

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