Multiresidue Analysis of Pesticides in Fruits and Vegetables Using Solid-Phase Extraction and Gas Chromatographic Methods

DOI PDF Web Site Web Site Web Site 参考文献39件
  • LAL Asha
    Department of Chemistry, Faculty of Science, Universiti Malaya
  • TAN Guanhuat
    Department of Chemistry, Faculty of Science, Universiti Malaya
  • CHAI Meekin
    Department of Science and Mathemathics, College of Engineering, Universiti Tenaga Nasional

この論文をさがす

抄録

A new extraction and cleanup procedure with gas chromatography was developed for the sensitive determination of acephate, dimethoate, malathion, diazinon, quinalphos, chlorpyrifos, profenofos, α-endosulfan, β-endosulfan, chlorothalonil and carbaryl using 1-chloro-4-fluorobenzene as an internal standard in fruits and vegetables. Several extracting and eluting solvents for solid-phase extraction were investigated. The overall extracting solvent with a mixture of acetone:ethyl acetate:hexane (10:80:10, v/v/v) and a eluting solvent of 5% acetone in hexane used with the RPC18 cartridge gave the best recovery for all of the investigated pesticides, and minimized the interference from co-extractants. Under the optimal extraction and clean-up conditions, recoveries of 85 - 99% with RSD < 5.0% (n = 3) for most of the pesticides at the 0.02 - 0.5 mg/kg level were obtained. The limit of detection was between 0.005 - 0.01 mg/kg and the limit of quantification was 0.01 mg/kg. This analytical procedure was characterized with high accuracy and acceptable sensitivity to meet requirements for monitoring pesticides in crops.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 24 (2), 231-236, 2008

    社団法人 日本分析化学会

参考文献 (39)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ