Miniaturised pressurised liquid extraction of chloroanilines from soil with subsequent analysis by large-volume injection-gas chromatography-mass spectrometry

E.M. Kristenson, S. Angioi, R.J.J. Vreuls, M.C. Gennaro, U.A.T. Brinkman

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A number of chloroanilines were extracted from soil by means of miniaturised pressurised liquid extraction (PLE). The extraction procedure was optimised for both large-volume on-column (LV-OC) and programmed-temperature vaporisation (PTV) injections combined with GC-MS. Hexane was the only extraction solvent suited for LV-OC and hexane/acetone gave the best results when using a PTV. Overall, the hexane/acetone-plus-PTV procedure shows better results than the hexane-plus-LV-OC method in terms of analyte recovery (36-109% versus 5-87%), repeatability (8-13% versus 4-31%) and detection limits. Both approaches allow detection of the chloroanilines in complex soil samples down to the 5-50 ng/g range. However, the PTV-based procedure is superior as regards robustness: over one hundred samples can be analysed without any maintenance being required. © 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)243-249
JournalJournal of Chromatography A
Volume1058
Issue number1-2
DOIs
Publication statusPublished - 2004

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