State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China.
State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China; Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Hangzhou 310021, PR China.
Ecotoxicol Environ Saf. 2022 Aug;241:113830. doi: 10.1016/j.ecoenv.2022.113830. Epub 2022 Jun 30.
A novel and efficient sample pretreatment procedure using magnetic particles was exploited for the determination of multi-pesticide residues in aquatic products. The magnetic adsorbent was prepared using divinyl benzene and N-vinyl pyrrolidone as functional monomers modified on the FeO @SiO. The obtained magnetic adsorbent, octadecylsilane sorbents, and graphitized carbon black were employed as effective adsorbents to remove matrix interferences in aquatic products, and their dosages were optimized. Satisfactory levels of accuracy and precision were procured under optimum conditions. The method limits of quantification ranged from 0.1 to 2.0 μg/kg. The analytical accuracy of the developed method for the analysis of multi-pesticide residues in freshwater and seafood products was validated. It was found to be suitable for the analysis of multi-pesticide residues in different types of aquatic products. Additionally, the method was successfully applied for the analysis of pesticide residues in fish samples obtained from aquaculture plants located in Zhejiang Province, China. The detected concentrations of pesticides ranged from 0.14 to 0.95 μg/kg. In general, this method shows promising application prospects for the rapid determination of multi-pesticide residues in aquatic products.
采用新型高效的磁性粒子样品预处理方法，用于测定水产品中的多种农药残留。磁性吸附剂是用二乙烯基苯和 N-乙烯基吡咯烷酮作为功能单体修饰在 FeO@SiO 上制备的。所得的磁性吸附剂、十八烷基硅烷吸附剂和石墨化炭黑被用作有效的吸附剂，以去除水产品中的基质干扰，并对其用量进行了优化。在最佳条件下，获得了令人满意的准确度和精密度水平。该方法的定量限范围为 0.1 至 2.0μg/kg。该方法用于淡水和海鲜产品中多农药残留的分析得到了验证。结果表明，该方法适用于不同类型水产品中多农药残留的分析。此外，该方法还成功地应用于分析中国浙江省水产养殖基地采集的鱼样中的农药残留。检测到的农药浓度范围为 0.14 至 0.95μg/kg。总的来说，该方法在快速测定水产品中的多种农药残留方面具有广阔的应用前景。
