Construction of a Silver(I) Ion-Selective Electrode Using Amine Phenol Ligand as Carrier and the Selective Determination of Silver in Actual Samples

被引:1
作者
Xu, Wen-Ju [1 ]
Chai, Ya-Qin [1 ]
Yuan, Ruo [1 ]
机构
[1] Southwest Univ, Sch Chem & Chem Engn, Chongqing Key Lab Analyt Chem, Tiansheng Rd 2, Chongqing 400715, Peoples R China
来源
JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE | 2011年 / 55卷 / 01期
关键词
Ion-selective electrode; Silver(I) ion; Potential response; N,N '-bis(2-hydroxybenzyl)-1,3-diaminopropane; N,N '-bis(2-hydroxybenzyl)-2,2-dimethyl-1,3-diaminopropane;
D O I
10.5012/jkcs.2011.55.1.063
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This work discusses the fabrication, development and potential response behaviors of Ag+ ion-selective electrodes (Ag+-ISE) based on N, N'-bis(2-hydroxybenzyl)-1,3-diaminopropane (L1) and N, N'-bis(2-hydroxybenzyl)-2,2-dimethyl-1,3diaminopropane (L2) as carriers. The observations indicated that the resulting electrode based on L1 toward Ag+ showed stable near-Nernst slope approaching 58.7 mV/dec and the optimum potential response characteristics in a linear range at least five orders of magnitude with a detection limit of 1.0x10(-6) M. The proposed electrode displayed the preferential selectivity to Ag + against other tested cations. The excellent potential analytical characteristics could lead to the successful applications of silver assay in significant real samples, indicating that the proposed Ag+-ISE showed a significant advancement of measurement capabilities. But for the electrode based on L2, the poor potential response characteristics were observed in total experiment process.
引用
收藏
页码:63 / 69
页数:7
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