Pesticide residue analysis in foodstuffs applying capillary gas chromatography with atomic emission detection state-of-the-art use of modified multimethod S19 of the Deutsche forschungsgemeinschaft and automated large-volume injection with programmed-temperature vaporization and solvent venting

Journal of Chromatography. a
H J Stan, M Linkerhägner

Abstract

Atomic emission detection (AED) provides high element-specific detection of all compounds amenable to gas chromatography (GC). The heteroatoms nitrogen, chlorine, phosphorus, sulfur, bromine and fluorine, which are important elements in pesticide residue analysis, are of major interest. A main drawback of AED is its lower sensitivity with respect to other selective detection methods used in pesticide residue analysis such as electron-capture and nitrogen-phosphorus detection. This holds true especially for the important nitrogen trace. For this reason, more sensitive detection can be achieved by injection of larger volumes or higher concentrations of sample extracts, because matrix compounds were usually registered only in the carbon, hydrogen and oxygen traces. This paper focuses on recent developments from the authors' laboratory in order to demonstrate the feasibility of screening analyses with the identification of pesticide residues down to the 0.01 ppm concentration level in plant foodstuffs. This has been achieved by means of automated large volume injection with programmed-temperature vaporization and solvent venting as well as careful optimization of make-up and reactant gases with AED. Clean up follows the principle o...Continue Reading

Citations

Mar 30, 2005·Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan·Yukinari TateishiKunihiro Kamata
Sep 23, 2014·Chemosphere·Michael H Abraham, William E Acree
Dec 28, 2007·Forensic Science International : Synergy·Tsuyoshi KanekoShinichi Suzuki
Jan 20, 2011·Journal of Separation Science·Xiao-Min XuYi-Ping Ren
Jul 10, 1999·Journal of Chromatography. a·G R van der Hoff, P van Zoonen
Apr 20, 2001·Journal of Chromatography. a·A ColuméM Valcárcel

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