一种用于重金属离子荧光定性分析的交叉反应传感器阵列。

A cross-reactive sensor array for the fluorescence qualitative analysis of heavy metal ions.

作者信息

Kang Huaizhi, Lin Liping, Rong Mingcong, Chen Xi

机构信息

Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.

Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China.

出版信息

Talanta. 2014 Nov;129:296-302. doi: 10.1016/j.talanta.2014.05.054. Epub 2014 Jun 5.

DOI:10.1016/j.talanta.2014.05.054

PMID:25127598

Abstract

A cross-reactive sensor array using mercaptopropionic acid modified cadmium telluride (CdTe), glutathione modified CdTe, poly(methacrylic acid) modified silver nanoclusters, bovine serum albumin modified gold nanoclusters, rhodamine derivative and calcein blue as fluorescent indicators has been designed for the detection of seven heavy metal ions (Ag(+), Hg(2+), Pb(2+), Cu(2+), Cr(3+), Mn(2+) and Cd(2+)). The discriminatory capacity of the sensor array to different heavy metal ions in different pH solutions has been tested and the results have been analyzed with linear discriminant analysis. Results showed that the sensor array could be used to qualitatively analyze the selected heavy metal ions. The array performance was also evaluated in the identification of known and unknown samples and the preliminary results suggested the promising practicability of the designed sensor assay.

摘要

一种交叉反应传感器阵列已被设计用于检测七种重金属离子（Ag(+)、Hg(2+)、Pb(2+)、Cu(2+)、Cr(3+)、Mn(2+)和Cd(2+)），该阵列使用巯基丙酸修饰的碲化镉（CdTe）、谷胱甘肽修饰的CdTe、聚（甲基丙烯酸）修饰的银纳米簇、牛血清白蛋白修饰的金纳米簇、罗丹明衍生物和钙黄绿素蓝作为荧光指示剂。测试了该传感器阵列在不同pH溶液中对不同重金属离子的区分能力，并采用线性判别分析对结果进行了分析。结果表明，该传感器阵列可用于对所选重金属离子进行定性分析。还对该阵列在已知和未知样品识别中的性能进行了评估，初步结果表明所设计的传感器检测方法具有良好的实用性。