Analysis of some pesticides in water samples using solid-phase microextraction-gas chromatography with different mass spectrometric techniques

Marco Natangelo, Simona Tavazzi, Roberto Fanelli, Emilio Benfenati

Research output: Contribution to journalArticle

Abstract

A solid-phase microextraction (SPME)-GC procedure has been developed for the analysis of four selected pesticides (propanil, acetochlor, myclobutanil and fenoxycarb) in water samples. Mass spectrometry (MS) was used and two different instruments, a quadrupole MS system and an ion trap operating in the MS-MS mode, were compared. A Carbowax-divinylbenzene SPME fiber was used. The performances of the two GC-MS instruments were comparable in terms of linearity (in the range of 0.1-10 μg/l in water samples) and sensitivity (limits of detection were in the low ng/l range); the quadrupole MS instrument gave better precision than the ion trap MS-MS system, but generally the relative standard deviations for replicates were acceptable for both instruments (

Original languageEnglish
Pages (from-to)193-201
Number of pages9
JournalJournal of Chromatography A
Volume859
Issue number2
DOIs
Publication statusPublished - Oct 29 1999

Keywords

  • Environmental analysis
  • Pesticides
  • Water analysis

ASJC Scopus subject areas

  • Analytical Chemistry

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