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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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