Validation of QuEChERS-based UPLC-MS/MS method for determination of quinoid niclosamide (LDS) residue in water, soil and rice samples

文献类型： 外文期刊

第一作者： Cao, Junli

作者： Cao, Junli;Liu, Xingang;Dong, Fengshou;Xu, Jun;Wu, Xiaohu;Zheng, Yongquan;Kaium, Abdul

作者机构：

关键词： Quinoid niclosamide (LDS); rice; soil; water; QuEChERS; UPLC-MS; MS

期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY （ 影响因子：2.826； 五年影响因子：2.215 ）

ISSN： 0306-7319

年卷期： 2018 年 98 卷 7 期

页码：

收录情况： SCI

摘要： A sensitive, rapid and easy analytical method was validated for the determination of quinoid niclosamide (LDS) molluscicide in water, rice and soil using a QuEChERS extraction procedure and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) detection. The LDS was extracted by using acetonitrile and then cleaned up by using dispersive solid-phase extraction with florisil and C18 sorbents. The determination of the target compound was achieved in less than 3min using an electrospray ionisation source in negative mode. The overall average recoveries for this method in water, rice and soil matrix at three fortified levels ranged from 82.54 to 99.9%, with relative standard deviations in the range of 1.51 to 4.86% (n=5). The calculated limits of detection were lower than 0.1 mu g kg(-1) and quantification was 5 mu g kg(-1); these values were much lower than the maximum residue levels established by the Australian standard (0.01mg kg(-1)). The results of the method validation confirmed that this proposed method is convenient and reliable for the determination of LDS molluscicide in water, rice and soil samples.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序