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基于平面膜的液相微提取,用于测定水样中的基本和酸性农药残留物

Mantang Chen¹, Linping Shi¹, Fuwei Xie¹

¹Zhengzhou Tobacco Research Institute of CNTC, Fengyang Street #2, Zhengzhou, Henan, 450001, PR China.

Journal of chromatography. A

|January 10, 2025

概括

开发了一种基于平面膜的新型液相微提取 (FM-LPME) 方法,用于同时提取农药. 这种环保技术为分析水中的基本和酸性农药残留物提供了高灵敏度和精度.

科学领域:

分析化学分析化学
环境科学环境科学
法医化学法医化学

背景情况:

在水样中的农药残留物分析对于环境和人类健康监测至关重要.
同时提取不同类型的农药 (酸性和基性) 提出了分析挑战.
现有的方法可能缺乏效率,敏感性或环保性.

研究的目的:

开发和优化一种新的基于平面膜的液相微提取 (FM-LPME) 技术.
从水样中实现基本和酸性农药残留物同时分离和提取.
通过液体染色学-并联质谱法 (LC-MS/MS) 验证开发的方法.

主要方法:

开发基于平面膜的液相微提取 (FM-LPME) 系统.
优化提取参数的模型基本农药 (carbendazim, pirimicarb) 和酸性农药 (布罗马西尔,二流素,RH-5849).
使用液体染色学-并联质谱法 (LC-MS/MS) 分析提取的农药.

主要成果:

对于所有测试的农药,FM-LPME-LC-MS/MS方法表现出极好的线性 (R2 > 0.9903).
实现了从0.01到0.09 ng mL-1.1的低检测极限.
在各种度中表现出高回收率 (80.0%-125.0%) 和低相对标准偏差 (0.3%-9.3%).

结论:

开发的FM-LPME-LC-MS/MS方法对于同时提取基本和酸性农药残留物是有效的.
该方法具有优势,包括环保性,宽线性范围,高灵敏度和精度.
这种技术显示出在水样中常规分析农药残留物的巨大潜力.

关键词:

酸性农药是一种酸性农药.基本的杀虫剂基本的杀虫剂平面膜是一种平面膜.液相微提取液相微提取的方法取水样取水样

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