Simultaneous detection of four pesticides in agricultural products by a modified QuEChERS method and LC-MS/MS.

IF 1.4 4区农林科学 Q4 ENVIRONMENTAL SCIENCES Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2023-01-01 DOI:10.1080/03601234.2023.2173926

Kunming Zheng, Yuanjun Guo, Xunke Hu, Yaping Yu, Jinxing Chen, Jianfeng Su, Wenhao Lian, Xiaoping Wu, Xingang Meng

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引用次数: 1

Abstract

A modified QuEChERS pretreatment method and LC-MS/MS technique were performed to simultaneously determine four pesticide (Hexachlorophene, Dinex, Dinosam, Dinoterb) residues in agricultural products. Through the optimization of LC-MS/MS detection parameters in SIM mode, the optimal instrument conditions are obtained. The modified QuEChERS method was used to pretreat the samples. Solid phase extractants PSA, C18 and GCB were used for sample purification. The research results showed that the correlation coefficients of the four pesticides were all greater than 0.991, which had a good linear relationship. The limits of quantitation (LOQ) of the four pesticides were 0.05-0.56 μg/kg. The recoveries were 70.51-113.20% with relative standard deviations (RSDS) of 1.6-11.2%. The developed method can provide reliable data support for the subsequent simultaneous detection of these four pesticides.

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改进的QuEChERS法和LC-MS/MS同时检测农产品中4种农药

采用改进的QuEChERS前处理方法和LC-MS/MS技术同时测定农产品中四种农药(六氯酚、迪纳克斯、Dinosam、Dinoterb)的残留量。通过对SIM模式下LC-MS/MS检测参数的优化，得到了最佳的仪器条件。采用改进的QuEChERS法对样品进行预处理。采用固相萃取剂PSA、C18和GCB对样品进行纯化。研究结果表明，4种农药的相关系数均大于0.991，具有良好的线性关系。4种农药的定量限为0.05 ~ 0.56 μg/kg。加样回收率为70.51 ~ 113.20%，相对标准偏差(RSDS)为1.6 ~ 11.2%。该方法可为后续四种农药的同时检测提供可靠的数据支持。

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来源期刊

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

4.00

自引率

5.00%

发文量

审稿时长

1 months

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