Simultaneous determination of chlorate and perchlorate in vegetables and fruits using ultra-performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry
Objective A 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).Methods The 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.Results The 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％.Conclusion A rapid,simple,accurate,and precise method was developed for the simultaneous analysis of chlorate and perchlorate in vegetables and fruits.
Ultra-performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry(UPLC-Qtrap MS)chlorateperchloratevegetablesfruitsfood contamination
万方数据
维普
