A highly selective solid-contact electrode for Ag+ based on a monoazathiacrown ether ionophore

被引：9
|
作者：
Yu, Shun Yang [1 ]
Ju, Lan [2 ]
Li, Fu Hai [1 ,3 ]
Liu, Yong Ming [3 ]
Fang, Jun Feng [4 ]
机构：
[1] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
[2] Zhejiang Text & Fash Coll, Ningbo 315211, Zhejiang, Peoples R China
[3] Yantai Univ, Chem & Chem Engn Coll, Yantai 264005, Peoples R China
[4] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2012年 / 23卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Solid contact; Silver; Ion-selective electrodes; Low detection limit; MEMBRANE ELECTRODES; STABILITY;
D O I：
10.1016/j.cclet.2011.12.016
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new solid-contact Ag+-selective electrode was prepared with 9,10,12,13,24,25-hexahydro-5H,15H,23H-dibenzo[b,q][1,7,10,13,19,4,16]-entathiadiazacyclodocosine-6,16(7H,17H)-dione as ionophore, and alpha,omega-dihexylsexithiophene (DH-6T) ion-to-electron transducer. The sensor exhibited a working concentration range of 10(-8) to 10(-3) mol/L, with a near-Nemstian slope of 55.1 +/- 0.2 mV/dec and detection limit of 1.7 x 10(-9) mol/L. The fabricated electrodes demonstrated excellent selectivity over the most common monovalent and divalent cations. (C) 2011 Shun Yang Yu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
引用
收藏
页码：488 / 491
页数：4
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