Fabrication and application of hydrangea-like magnetic titanium dioxide (Fe3O4-TiO2) particles: Development of magnetic "one-step" pretreatment method for multi-pesticide residues analysis in fish
文献类型： 外文期刊
作者： Liu, Zhenzhen 1 ; Qi, Peipei 1 ; Zhao, Huiyu 1 ; Wang, Jiao 1 ; Wang, Zhiwei 1 ; Di, Shanshan 1 ; Xu, Hao 1 ; Wang, Qiang 1 ; Wang, Xinquan 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
2.Agr Minist, Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China
3.Key Lab Detect Pesticide Residues & Control Zhejia, Hangzhou 310021, Peoples R China
4.198 Shiqiao Rd, Hangzhou 310021, Peoples R China
关键词： Magnetic "one-step" pretreatment method; Pesticide residues; Fish
期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.9； 五年影响因子：9.5 ）
ISSN： 0269-7491
年卷期： 2023 年 327 卷
页码：
收录情况： SCI
摘要： Magnetic titanium dioxide (Fe3O4-TiO2) was prepared and utilized as the cleanup adsorbent and separation medium to modify the QuEChERS method, affording a facile, robust, and rapid magnetic "one-step" pretreatment method for the determination of multi-pesticide residues in fish. The pretreatment key parameters, such as the dosages of the purification adsorbents (Fe3O4-TiO2 and PSA), the dehydrating and salting out reagents, were systematically optimized by the orthogonal test method. Under the optimal conditions, satisfactory results of method evaluation were obtained. Good linearity of 127 target analytes was obtained from 1 to 250 mu g L-1. The recoveries of 127 analytes at five spiked levels of 10, 25, 50, 125, and 250 mu g kg(-1) ranged from 71.0% to 129% with RSDs less than 15.0%. The method LOQs (MLOQs) of 127 analytes were 10 mu g kg(-1), meeting the requirement for multi-pesticide residues analysis in fish. Additionally, this magnetic "one-step" method was used for the analysis of multi-pesticide residues in real fish samples collected from Zhejiang Province, China. In summary, this method can work as a viable tool for multi-pesticide residues monitoring in fish.
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