Zhongguo shipin weisheng zazhi (Mar 2024)
Simultaneous determination of chlorate and perchlorate in vegetables and fruits using ultra-performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry
Abstract
ObjectiveA method was developed to simultaneously determine chlorate and perchlorate in vegetables and fruits using ultra-performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry (UPLC-Qtrap MS).MethodsThe chlorate and perchlorate residues in samples were extracted using acetonitrile and water, and the supernatant was purified using GCB and PSA. The analytes were separated on a Waters Anionic Polar Pesticide (100 mm×2.1 mm, 5 µm) column using a mobile phase comprising acetonitrile and 20 mmol/L ammonium formate solution and detected using UPLC-Qtrap MS. The internal standard method was used for quantification.ResultsThe linear relationship of chlorate and perchlorate ranged from 2.0-200 and 0.5-100 µg/L, with correlation coefficients >0.999. The limits of detection were 0.006 and 0.001 mg/kg. The recoveries in spiked samples ranged from 83.3%-105.5%, and the relative standard deviations ranged from 0.97%-3.80%.ConclusionA rapid, simple, accurate, and precise method was developed for the simultaneous analysis of chlorate and perchlorate in vegetables and fruits.
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