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有机酸杀虫剂的微提取,预度和基于微流体的分离,然后是微型化电化学检测系统

Abdollah Abdollahi Aghdam^1,2, Mohsen Chamanara^1,3, Reza Laripour⁴

¹Department of Toxicology and Pharmacology, Faculty of Medicine, AJA University of ‎Medical Sciences, Tehran, Iran.

BioImpacts : BI

|June 28, 2024

概括

一种新的微提取和微流体学方法使得在人血中快速电化学检测出酸 (FT) 和酸 (PA). 这个便携式系统为这些有机酸盐杀虫剂提供了灵敏而精确的分析.

科学领域:

分析化学分析化学
电化学电化学电化学
微流体学微流体学

背景情况:

有机类杀虫剂,如芬尼 (FT) 和帕拉 (PA),对健康构成重大风险.
准确和快速的检测方法对于监测暴露至关重要,特别是在生物样本中.
现有的方法可能缺乏可移植性或需要大量的样本准备.

研究的目的:

开发和验证一种用于FT和PA的同时预度,分离和电化学检测的新型分析方法.
研究合微提取和微流体的应用,以在人血中分析这些农药.
建立一个便携式和灵敏的FT和PA检测系统.

主要方法:

开发一种带有毛细电泳的微流体芯片,用于使用Pt微电极进行分离和电化学检测.
实施一种空气辅助的液体-液体微提取技术,用于从人类血中预先缩分析物.
提取周期,溶剂和缓冲条件的优化;使用直接电场进行分析.

主要成果:

达到FT (240ppb) 和PA (360ppb) 的ppm以下检测极限,提取回收率高 (分别为91%和87%).
证明了快速分析时间 (<100秒) 和良好的精度 (3.3-8.2%) 在线性范围内的0.8-100 ppm (FT) 和1.2-100 ppm (PA).
使用燃烧电离检测 (GC-FID) 验证了该方法的可靠性.

结论:

拟议的合微提取-微流体学方法为FT和PA检测提供了灵敏,快速和可靠的方法.
开发的系统适用于现场和便携式应用.
这项技术可以帮助及时评估暴露在这些危险杀虫剂中的情况.

关键词:

酸氨基 (Phenitrothion) 是一种含有酸的物质.杀虫剂是一种杀虫剂.微提取微提取微提取微流体学微流体学有机酸盐是一种有机酸盐.帕拉西奥尼帕拉西奥尼

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