Article,

Using Single Drop Microextraction for Headspace Analysis with Gas Chromatography

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Journal of Chemical Education, 85 (7): 965 (2008)
DOI: 10.1021/ed085p965

Abstract

Headspace (HS) gas chromatography (GC) is commonly used to analyze samples that contain non-volatiles. In 1996, a new sampling technique called single drop microextraction, SDME, was introduced, and in 2001 it was applied to HS analysis. It is a simple technique that uses equipment normally found in the undergraduate laboratory, making it ideal for instructional use, especially to illustrate HS analysis or as an alternative to solid-phase microextraction (SPME) to which it is very similar. The basic principles and practice of HS–GC using SDME are described, including a complete review of the literature. Some possible experiments are suggested using water and N-methylpyrrolidone (NMP) as solvents.

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