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用于选择性电场辅助固相微提取植物激素的分子印制聚合物功能化电极的制造和评估

Jiangyi Wu¹, Lingxin Zheng¹, Xiaojia Huang¹

¹Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, 361005, China.

|December 29, 2023

概括

本研究介绍了一种电场辅助方法,使用分子印制聚合物功能化电极来精确提取植物激素 (PHs). 这种技术提高了复杂样本PH分析的选择性和灵敏度.

科学领域:

分析化学分析化学
材料科学材料科学材料科学

背景情况:

精确量化微量植物激素 (PHs) 是至关重要的,但由于它们的高极性而具有挑战性.
现有的方法经常在特定的PHs捕获和分离方面扎.

研究的目的:

开发一种用于特定和高效提取微量植物激素的新方法.
在复杂矩阵中增强植物激素分析的选择性和灵敏性.

主要方法:

在现场准备一个分子印制聚合物功能化电极 (MIP@ED),使用3-酸 (IAA) 作为模板.
应用电场辅助固相微提取 (EA-SPME) 与MIP@ED用于植物激素捕获.
将开发的方法与高性能液体染色学 (HPLC) 结合起来进行痕迹分析.

主要成果:

电场显著提高了提取选择性,使IAA及其类型的选择性因子从2.09-2.45增加到2.88-3.51.
已达到低检测极限:水中的0.0053-0.011μg/L和农产品中的0.048-0.12μg/kg.
在真实样本中表现出高灵敏度,良好的选择性,令人满意的可重现性 (RSD < 10%) 和恢复率 (84.0%-118%).

结论:

开发的MIP@ED/EA-SPME技术为微量植物激素量化提供了一种敏感,选择性和可重复的方法.
这种方法提供了一个新的策略,以改善基于MIP的SPME的特定识别性能,用于复杂的样本分析.
该方法环保,适用于分析水和农产品中的植物激素.

关键词:

吸附剂是一种吸附剂.电场是一个电场.有分子印记的聚合物.植物激素植物激素固相微提取固相微提取方法

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