A comparative study of four 20-membered N_2S_4-crown ethers as ionophores for polymeric membrane silver selective electrodes  

作　　者：Zhang, Jun Yu, Shun Yang Yin, Tan Ji Hu, Xue Feng Qin, Wei 

机构地区：[1]Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China [2]Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China [3]Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

出　　处：《Chinese Chemical Letters》2010年第4期464-467,共4页中国化学快报（英文版）

基　　金：supported by the Chinese Academy of Sciences(No.KZCX2-YW-410);the National Natural Science Foundation of China(No.40776058);the National 863 High Technology Project of the Ministry of Science and Technology of China(No.2007AA09Z103);the Outstanding Youth Natural Science Foundation of Shandong Province(No.JQ200814)

摘　　要：Four 20-membered N_2S_4-monoazathiacrown ethers have been synthesized and explored as neutral ionophores for Ag^+-selective electrodes.Potentiometric responses reveal that the flexibility of the ligands has great effect on the selectivity and sensitivity to Ag^+ ions.The electrode based on ionophore 9,10,20,25-tetrahydro-5H,12H-tribenzo[b,n,r][1,7,10,16,4,13]tetrathiadiaza cycloicosine 6,13-(7H,14H)-dione(C) with 2-nitrophenyl octyl ether(o-NPOE) as solvent in a poly(vinyl chloride)(PVC) membrane matrix sho...Four 20-membered N_2S_4-monoazathiacrown ethers have been synthesized and explored as neutral ionophores for Ag^+-selective electrodes.Potentiometric responses reveal that the flexibility of the ligands has great effect on the selectivity and sensitivity to Ag^+ ions.The electrode based on ionophore 9,10,20,25-tetrahydro-5H,12H-tribenzo[b,n,r][1,7,10,16,4,13]tetrathiadiaza cycloicosine 6,13-(7H,14H)-dione(C) with 2-nitrophenyl octyl ether(o-NPOE) as solvent in a poly(vinyl chloride)(PVC) membrane matrix sho...

关 键 词：Ion-selective electrodes SILVER IONOPHORE Azathiacrown ether 

分 类 号：O621.2[理学—有机化学]