Determination of residual triadimefon, triadimenol-a, triadimenol-b in corn by gel permeation chromatography and gas chromatography/mass spectrometry

Weiguo Zhang, Jinshan Gao, Shanshan Chen, Chongjiu Li

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A method for simultaneous determination of triadimefon, triadimenol-a, triadimenol-b residues in corn is described. The pesticides were extracted using acetonitrile from sample. Most of lipids in co-extractives were removed by liquid-liquid extraction and gel permeation chromatography. Lutein was removed using solid-phase extraction on a Envi-carb column. The pesticides were finally determined by gas chromatography/mass spectrometry in selective-ion Monitor (SIM) simultaneously. The average recoveries (spiked level 0.05, 0.5 and 2 μg/g) were between 90% and 110%. The relative standard deviation of the method was less than 10% in every case.

Original languageEnglish
Pages (from-to)1442-1444
Number of pages3
JournalFenxi Huaxue
Volume33
Issue number10
StatePublished - 1 Oct 2005

Keywords

  • Corn
  • Gas chromatography-mass spectrometry
  • Gel permeation chromatography
  • Triadimefon
  • Triadimenol-a
  • Triadimenol-b

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