Supercritical Fluid Chromatography Extraction

Supercritical fluid chromatography (SFC) is a technique that in many ways is a hybrid of GC and HPLC. It is recognized as a valuable technique for the analysis of thermally labile compounds such as carba-mates. A few applications have been reported for SFC in the field of pesticide determination in food. The versatility in separation, the possibility of using different detectors (LC or GC detectors), and the prospect of directly coupling with supercritical fluid extraction (SFE), make this analytical technique very attractive. SFE using CO2 has been examined for separating carbamates from interfering coextractives prior to analysis either by LC-FS or by GC with ion trap mass spectrometry (ITMS) detection. Pre-extraction of ground meat with acetonitrile before SFE left behind over 99% of the fat and fibre. SFE of the acetonitrile extracts with pelletized diatomaceous earth further reduced the amount of coextractives 10-fold, removing the interferences that would have appeared in the fluorescence mode.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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