Determination of bisultap residue in tropical fruits by ultra performance liquid chromatography-tandem mass spectrometry

doi:10.3724/SP.J.1123.2018.08018

Abstract

Abstract:

A method for the determination of bisultap in tropical fruits was developed by modified QuEChERS method and ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The tropical fruit samples were twice extracted with acetonitrile containing 1% (v/v) acetic acid, and purified by 200 mg of primary secondary amine (PSA), 100 mg of C18, 300 mg of MgSO₄ and 500 mg of disodium hydrogen citrate. The analyte was separated on a CAPCELL CORE PC hydrophilic column, detected in the negative ion multiple reaction monitoring (MRM) mode, and quantified by external standard method. A good linear relationship in the range of 0.1-10.0 μg/L was obtained with the correlation coefficient (r²) of 0.9993. The limit of detection and limit of quantification were 0.015 μg/kg and 0.05 μg/kg, respectively. The spiked recoveries were in the range of 81.0%-88.3% with the relative standard deviations from 3.9% to 6.2%. The method has good purification effect and high sensitivity, and is suitable for the rapid analysis of the bisultap residues in tropical fruits.

Key words: bisultap, residues, tropical fruit, ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS)

CLC Number:

O658

LIN Tao, SHAO Jinliang, LIU Xingyong, WANG Jing, ZOU Yanhong, LI Maoxuan, LIU Hongcheng. Determination of bisultap residue in tropical fruits by ultra performance liquid chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2018, 36(12): 1223-1227.

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