Using Single Drop Microextraction for Headspace Analysis with Gas Chromatography.

• Autores: Daniel Riccio, Derrick C. Wood, James M. Miller
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 85, Nº 7, 2008, págs. 965-968
• Idioma: inglés
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• Resumen

  • 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.