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Determination of Benzo [α] pyrene in Vegetables by Reformed QuEChERS-High Performance Liquid Chromatography |
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DOI:10.3969/j.issn.1004-4957.年份.月份 |
KeyWord:QuEChERS liquid chromatography-fluorescent detection benzo[α] pyrene vegetables |
Author | Institution |
戴廷灿,李伟红,廖且根,陈光宇,魏爱华 |
江西省农科院农产品质量安全与标准研究所 |
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Abstract: |
A method was developed for the determination of benzo[α] pyrene in vegetables by reformed QuEChERS and high performance liquid chromatography with fluorescence detector. The samples were extracted with acetonitrile,distilled with PSA+neutral Al2O3 column,and rinsed with mixture of hexane and acetonitrile(95∶5,by volume). The external standard method was used to determine the content of benzo[α] pyrene. The result indicated that the calibration curve was linear in the range of 1.0-20.0 μg/kg with correlation coefficient of 0.999.The limit of quantitation(LOQ) was 1.0 μg/kg.The recoveries of benzo[α] pyrene were in the range of 65%-98% with RSDs of 5.9%-13.8%.The method was applied in the practical inspection on vegetables,and benzo[α]pyrene was detected in one sample with residual concentration of 1.23 μg/kg. |
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