文献类型：期刊文献

英文题名：Ion-selective gold-thiol film on integrated screen-printed electrodes for analysis of Cu(II) ions

作者：Li, Meng;Zhou, Hao;Shi, Lei;Li, Da-Wei;Long, Yi-Tao[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：139

期号：3

起止页码：643

外文期刊名：ANALYST

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000328912000016)】；

基金：This research was supported by the National Science Fund for Distinguished Young Scholars (21125522), the Natural Science Foundation of China (21327807), the Fundamental Research Funds for the Central Universities (WB1113005) and the Shanghai Pujiang Program Grant of China (12JC1403500). Yi-Tao Long is supported by the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. Meng Li is supported by the Sino-UK Higher Education Research Partnership for PhD Studies.

语种：英文

摘要：A novel type of ion-selective electrode (ISE) was manufactured for detecting trace amounts of Cu(II) ions. The basic substrates of ISE were fabricated using screen-printing technology, which could produce disposable electrodes on a large-scale with good repeatability. Moreover, the printed integrated three-electrode system of ISE could be directly used to read out the open-circuit potentials by a handheld device through a USB port. The ion-selective film was composed of gold nanorods (GNRs) and 6-(bis(pyridin-2-ylmethyl)amino)hexane-1-thiol (compound a), which were layer-by-layer modified on the electrode through an easily controlled self-assembly method. Compound a contained the 2,2'-dipyridylamine (dpa) group that could coordinate with Cu(II) ions to form a 2 : 1 complex, therefore the screen-printed ISEs exhibited Nernstian potentiometric responses to Cu(II) ions with a detection limit of 6.3 x 10(-7) mol L-1 over the range of 1.0 x 10(-6) to 1.0 x 10(-2) mol L-1. The easily prepared screen-printed ion-selective electrode reported here was appropriate for in field analysis and pollutant detection in remote environments.