Development of a Simultaneous Analytical Method for Glufosinate, Glyphosate, and AMPA in Drinking Water

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Other Title
  • 水道水中のグルホシネート・グリホサートおよびアミノメチルリン酸の一斉分析法の検討
  • 水道水中のグルホシネート・グリホサートおよびアミノメチルリン酸の一斉分析法の検討 : 誘導体化-LC/MS/MS法および誘導体化-固相抽出-LC/MS/MS法
  • スイドウ スイチュウ ノ グルホシネート ・ グリホサート オヨビ アミノメチルリンサン ノ イッセイ ブンセキホウ ノ ケントウ : ユウドウタイカ-LC/MS/MSホウ オヨビ ユウドウタイカ-コソウ チュウシュツ-LC/MS/MSホウ
  • ～誘導体化-LC/MS/MS法および誘導体化-固相抽出-LC/MS/MS法～
  • Derivatization-LC/MS/MS and Derivatization-SPE-LC/MS/MS

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Description

The pesticide list for drinking water in Japan was revised on March 28, 2013, and the amino acid-based herbicide glufosinate was listed as a target pesticide. However, no official analytical method for glufosinate has been given by the Ministry of Health, Labour and Welfare in Japan. We investigated the simultaneous analytical method for glufosinate, glyphosate, and aminomethylphosphoric acid (AMPA) in tap water with liquid chromatography-tandem mass spectrometry (LC/MS/MS) after derivatization by 9-fluorenylmethyl Chloroformate (FMOC) and solid-phase extraction (SPE) with ODS cartridge following the derivatization. The optimum application volume of sample to SPE was 20 mL and the ratio of acetonitrile/5 mM ammonium acetate was 40/60 (v/v). In the case of derivatization-LC/MS/MS, the recovery rate and coefficients of variation of the three pesticides were 92-116% and 1.2-10.9%, respectively, by using the concentration of 1/100 or 1/10 of the desired values of each pesticides. Similarly, in the case of derivatization-SPE-LC/MS/MS, the recovery rate and coefficients of variation of the three pesticides were 99-118% and 0.9-4.0%, respectively. We concluded that these methods were applicable as the simultaneous analysis of glufosinate, glyphosate, and AMPA in tap water.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 28 (6), 415-425, 2015

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

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