Residue, Dissipation Pattern, and Dietary Risk Assessment of Imidacloprid in Chinese Chives

文献类型： 外文期刊

第一作者： Zhai, Rongqi

作者： Zhai, Rongqi;Zhang, Kaige;Chen, Ge;Liu, Guangyang;Huang, Xiaodong;Gao, Mingkun;Zhou, Jie;Xu, Xiaomin;Li, Lingyun;Zhang, Yanguo;Xu, Donghui;Wang, Jing;Jin, Maojun;Abd El-Aty, A. M.;Abd El-Aty, A. M.

作者机构：

关键词： imidacloprid pesticides; dissipation dynamics; Chinese chives; sample preparation; risk assessment

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）

ISSN： 2296-861X

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： The demand for Chinese chives is growing as they are also rich in vitamins, fiber, and sulfur nutrients. Chinese chives should be sprayed with imidacloprid to control pests and diseases to safeguard their yield and to meet the demands of East Asian consumers for Chinese chives. Overspraying of imidacloprid can lead to residues in Chinese chives, posing a severe risk to human health. To reduce the harmful effects of imidacloprid residues on humans, we investigated the imidacloprid dissipation pattern and the final residue on Chinese chives using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Good linearity (R-2= 0.9988), accuracy (expressed as recovery % of 78.34-91.17%), precision [expressed as relative SDs (RSDs) of 0.48-6.43%], and sensitivity [a limit of quantification (LOQ) <= 8.07 x 10(4) mg/kg] were achieved. The dissipation dynamics were consistent with the first-order kinetics, with a half-life of 2.92 days. The final residual levels on Chinese chives were 0.00923-0.166 mg/kg, which is lower than the maximum residue limits (MRLs) of 1 mg/kg for imidacloprid on Chinese chives. A risk assessment index of <1 indicates that Chinese chives are safe for consumption.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序