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基于聚合物的离子印记传感器用于检测离子

Kit Meng Low¹, Xuanhao Lin¹, Huanan Wu²

¹Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.

|March 13, 2024

概括

一个新的传感器将印有离子的聚合物与石英晶体微平衡相结合,用于废水分析. 这种具有成本效益的快速传感器为检测 (II) 离子提供了高选择性和灵敏度.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

(II) 离子对环境和健康构成重大风险.
准确和敏感的检测方法对于废水中的至关重要.
现有的方法可能缺乏选择性,速度或成本效益.

研究的目的:

开发一种新型,高度选择性的传感器,用于废水中检测 (II) 离子.
将离子印制聚合物 (IIP) 的特性与石英晶微平衡 (QCM) 技术结合起来.
评估传感器的性能特征,包括灵敏度,选择性和检测极限.

主要方法:

合成一种新的素和2-氨基功能化甲基烯酸单体,用于 (II) 离子结合.
使用合成的单体,制造一个离子印记聚合物 (IIP).
将IIP涂在一个石英晶微平衡 (QCM) 芯片上,以创建一个IIP-QCM传感器.
传感器在各种水样中检测 (II) 离子的性能.

主要成果:

合成的IIP对 (II) 离子具有很高的结合亲和力.
开发的IIP-QCM传感器对 (II) 离子具有很高的选择性和敏感性.
达到了14.17ppb的检测极限 (LOD) 和42.94ppb的量化极限 (LOQ).
证明了良好的重复性和42.94ppb至2ppm的工作范围.
在自来水和废水样本中成功分析了 (II) 离子.

结论:

新型IIP-QCM传感器是选择性和快速检测 (II) 离子的一个有希望的工具.
该传感器为废水中污染的环境监测提供了具有成本效益的替代方案.
这项技术有可能在水质评估中得到实际应用.

关键词:

有离子印记的聚合物.检测的检测仪石英晶体微平衡器的使用方法传感器传感器传感器废水分析废水分析

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