中国科学院海岸带环境过程与生态修复重点实验室知识库

[Yu, Shun Yang; Li, Fu Hai] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Ju, Lan] Zhejiang Text & Fash Coll, Ningbo 315211, Zhejiang, Peoples R China; [Li, Fu Hai; Liu, Yong Ming] Yantai Univ, Chem & Chem Engn Coll, Yantai 264005, Peoples R China; [Fang, Jun Feng] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

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.;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.