Ion-Imprinted Polymer-Based Sensor for the Detection of Mercury Ions

被引：2

作者：

Low, Kit Meng ^{[1
]}

Lin, Xuanhao ^{[1
]}

Wu, Huanan ^{[2
]}

Li, Sam Fong Yau ^{[1
,3
]}

机构：

[1] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore

[2] Peking Univ, Sch Environm & Energy, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China

[3] NUS Environm Res Inst NERI, 02-01,T-Lab Bldg TL,5A Engn Dr 1, Singapore 117411, Singapore

来源：

POLYMERS | 2024年 / 16卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

Ion-imprinted polymer; quartz-crystal microbalance; wastewater analysis; mercury detection; sensor;

D O I：

10.3390/polym16050652

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this work, the development of a novel method for the detection of mercury (II) ions in wastewater using a mercury ion-imprinted polymer (IIP) combined with a quartz crystal microbalance (QCM) is described. The IIP was successfully synthesized via the polymerization of a of a novel fluorescein- and 2-aminophenol-functionalized methacrylic acid monomer, which was noted to have high binding affinity to mercury (II) ions. This polymer was subsequently coated on a QCM chip to create an IIP-QCM sensor. This sensor was established to have high selectivity and good sensitivity to mercury (II) ions, and had a limit of detection (LOD) of 14.17 ppb, a limit of quantification (LOQ) of 42.94 ppb, a signal-to-noise ratio (S/N) of 4.29, good repeatability, and a working range of 42.94 ppb to 2 ppm. The sensor was also able to analyze tap water and wastewater samples. The IIP-QCM is, therefore, promising as a highly selective, cost-effective, and rapid mercury ion sensor for applications involving the detection of mercury in wastewater.

引用

页数：13

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