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ACTA HORTICULTURAE SINICA ›› 2017, Vol. 44 ›› Issue (3): 566-574.doi: 10.16420/j.issn.0513-353x.2016-0425

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Determination of Glyphosate and Aminomethylphosphonic Acid Residues in Peach Fruit,Leaf and Soil by High Performance Liquid Chromatography–Tandem Mass Spectrometry

QIAO Chengkui,WANG Chao,HUANG Yunan,XIE Hanzhong*,LUO Jing,PANG Tao,and FANG Jinbao   

  1. Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences;Laboratory of Quality and Safety Risk Assessment for Fruit(Zhengzhou),Ministry of Agriculture;Fruit and Nursery Stock Quality Supervision and Testing Center(Zhengzhou),the Ministry of Agriculture,Zhengzhou 450009,China
  • Online:2017-03-25 Published:2017-03-25

Abstract:

An analytical method for the determination of glyphosate(PMG)and aminomethyl- phosphonic acid(AMPA)in peach fruit,leaf and soil was established using high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS). The samples were extracted with NaHCO3 water solution and dichloromethane,derived with 9-fluorenylmethyl chloroformate(FMOC-Cl)at room temperature for 3 h,and analyzed in multiple reaction monitoring(MRM)mode. The results indicated good linearity with correlation coefficients greater than 0.999 in the concentration range of 1–2 000 μg · L-1. The average recoveries of PMG and AMPA in each matrixes were found between 76.7% and 93.0% at 0.01–1.0 mg · kg-1,with relative standard deviations(RSD)of 2.2%–8.7%. The limits of  quantification(LOQ)were 0.01 mg · kg-1. The method was suitable for rapid determination of PMG and AMPA residues in fruit and leaf of peach and soil.

Key words: peach, fruit, leaf, soil, glyphosate, aminonethylphosphonic acid, HPLC-MS/MS