Correlation of supercritical‐fluid extraction recoveries with supercritical‐fluid chromatographic retention data: A fundamental study | Zendy

Lou Xianwen | Zendy; Janssen HansGerd | Zendy; Cramers Carel A. | Zendy

Open Access

Correlation of supercritical‐fluid extraction recoveries with supercritical‐fluid chromatographic retention data: A fundamental study

Author(s) -

Lou Xianwen,

Janssen HansGerd,

Cramers Carel A.

Publication year - 1995

Publication title -

journal of high resolution chromatography

Language(s) - English

Resource type - Journals

eISSN - 1521-4168

pISSN - 0935-6304

DOI - 10.1002/jhrc.1240180805

Subject(s) - supercritical fluid extraction , supercritical fluid , chromatography , supercritical fluid chromatography , extraction (chemistry) , chemistry , volumetric flow rate , analyte , matrix (chemical analysis) , analytical chemistry (journal) , gas chromatography , thermodynamics , organic chemistry , physics

The possibility of using supercritical‐fluid chromatographic retention data for examining the effects of operational parameters, such as pressure and flow rate, on the extraction characteristics in supercritical‐fluid extraction (SFE) was investigated. A model was derived for calculating the extraction efficiency in SFE from retention data and peak shapes measured in supercritical‐fluid chromatography (SFC). By performing the SFC experiments at the same pressure and temperature as the SFE extractions using the SFE extraction cell as the SFC column, an accurate prediction of extraction efficiencies could be made. Finally, the effects of matrix composition and analyte concentration on extraction efficiency were studied.

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