嘧霉胺
农药残留
杀虫剂
阿米西达
呋喃丹
多菌灵
北京
残留物(化学)
化学
色谱法
环境化学
环境科学
毒理
杀菌剂
中国
园艺
农学
生物
地理
考古
生物化学
作者
Jianxun Li,Wenhui Chen,Kailin Deng,Shuyan Liu,Bei Li,Yi Li
标识
DOI:10.1080/19393210.2022.2028311
摘要
In this study, 142 pesticide residues in 245 strawberry samples, gathered from farmers markets or supermarkets in Beijing from June 2017 to May 2018, were investigated. The samples were analysed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). According to the validation data, including linearity, recovery, precision and measurement uncertainty, the method performed well in monitoring pesticide residues and complied with the requirements of the European Guideline SANTE/11813/2017. Among the strawberry samples, 26.0% contained at least one pesticide residue, four of which contained pesticide residues that exceeded the maximum residue limit of China. Carbendazim, pyrimethanil and azoxystrobin were the most frequently detected pesticides in the strawberry samples. Lower bound, middle bound and upper bound values were used to replace left-censored results. In the worst-case scenario, the hazard index (HI) for adults and children was 0.91% and 3.62%, respectively. Carbofuran, bifenazate and pyraclostrobin were identified as the top three contributors to HI.
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