Simultaneous Determination of Fermentation Broth of Morinda Citrifolia using QuEChERS-Gas Chromatography-tandem Mass Spectrometry

doi:10.14088/j.cnki.issn0439-8114.2019.01.023

Abstract

Abstract: A method has been developed for the simultaneous determination of 12 pesticides residues in fermentation broth of Morinda citrifolia using QuEChERS-gas chromatography-tandem mass spectrometry. The residue of 12 pesticides were extracted from samples by acetonitrile,then the extracting solution was cleaned up with PSA. Finally,the pesticides was analysed by gas chromatography-mass spectrometry under MRM mode via electrospray ionization.All pesticides were quantified by external standard method. The matrix calibration curves of the pesticides were linear in the range of 0.005~0.960 mg/L. The average recoveries of target compounds at three spiked concentration levels of 0.012,0.08,0.40 mg/kg were in the range of 84.2%~113.0%, RSD were less than 15%, the limit of quantification of most pesticides were 0.012 mg/kg. The results demonstrated the method is simple, fast aaccurated and can be used for analysis of the multiclass of pesticide residues in fermentation broth of morinda citrifolia.

Key words: Morinda citrifolia, pesticides, QuEChERS, gas chromatography-tandem mass spectrometry

CLC Number:

O657.7⁺1

WU Nan-cun, ZHANG Qun, LIU Chun-hua, MA Chen, WU Xue-jin. Simultaneous Determination of Fermentation Broth of Morinda Citrifolia using QuEChERS-Gas Chromatography-tandem Mass Spectrometry[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(1): 96-99.

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