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On-line supercritical fluid extraction/chromatography system for trace analysis of pesticides in soybean oil and rendered fats

✍ Scribed by Balasingam Murugaverl; Kent J. Voorhees

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
448 KB
Volume
3
Category
Article
ISSN
1040-7685

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✦ Synopsis

A method for trace analysis incorporating solid phase extraction (extraction and clean-up) with supercritical fluid chromatography (SFC) for analytes in fats and oils has been developed. Direct coupling (on-line) of supercritical fluid solid phase extraction with supercritical fluid chromatography (SFSPEISFC) allows analysis of solutes in fats and oils for which on-line SFElSFC is unsuitable. The main feature of SFSPEISFC is that extraction and clean-up are accomplished in one step using unmodified supercritical carbon dioxide. Extraction/clean-up is monitored by a photodiode array detector which allows fractionation. The operational set-up and potential usefulness of the SFSPE/SFC system and applications for pesticide analysis of lipid sample matrices are described.

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On-line coupled supercritical fluid extraction–liquid chromatography–gas chromatography–mass spectrometry for the analysis of organic acids
✍ Masahiko Shimmo; Tuulia Hyötyläinen; Kari Hartonen; Marja-Liisa Riekkola 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 204 KB

## Abstract An on‐line coupled supercritical fluid extraction–liquid chromatography–gas chromatography–mass spectrometry (SFE‐LC‐GC‐MS) system was constructed and applied for the quantitative analysis of selected organic acids. In SFE the analytes were derivatized __in situ__ with pentafluorobenzyl