Study of Multi-residue Method for Determining Pesticide Residues in Processed Foods Manufactured from Agricultural Products by LC-MS/MS

DOI JASI Web Site PubMed 2 Citations 15 References

Bibliographic Information

Other Title
  • LC-MS/MSによる農産物を主原料とした加工食品中の残留農薬一斉分析法の検討
  • LC-MS/MS ニ ヨル ノウサンブツ オ シュ ゲンリョウ ト シタ カコウ ショクヒン チュウ ノ ザンリュウ ノウヤク イッセイ ブンセキホウ ノ ケントウ

Search this article

Abstract

A rapid multi-residue method for determination of pesticide residues in processed foods manufactured from agricultural products was examined. Five mL water was added to 5 g sample in a polypropylene tube, and the tube was left to stand at room temperature for 30 min. Then, 20 mL acetonitrile was added to the sample. The mixture was homogenized in a high-speed homogenizer, followed by salting out with 1 g NaCl and 4 g anhydrous MgSO4. After centrifugation, the organic layer was purified on a graphitized carbon/PSA cartridge column. After removal of the solvent, the extract was resolved in methanol–water and analyzed with LC-MS/MS. The recoveries of 93 pesticides fortified into 5 kinds of processed foods [Chinese cabbage kimchi, marmalade, raisin, umeboshi (pickled plum) and worcester sauce] were examined at the concentrations of 0.02 and 0.1 μg/g (n=5). The recoveries of 61 pesticides in all foods were 70–120% with relative standard deviation below 20% at both concentrations. Seventy-four processed foods obtained from markets in Japan were examined with this method. Pesticide residues over the maximum residue limit (0.01 μg/g) were detected in 2 processed foods.

Journal

Citations (2)*help

See more

References(15)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top