Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1246536 | Talanta | 2010 | 7 Pages |
Abstract
Nine monoazathiacrown ethers have been synthesized and explored as ionophores for polymeric membrane Ag+-selective electrodes. Potentiometric responses reveal that the ion-selective electrodes (ISEs) based on 2,2â²-thiodiethanethiol derivatives can exhibit excellent selectivities toward Ag+. The plasticized poly(vinyl chloride) membrane electrode using 22-membered N2S5-ligand as ionophore has been characterized and its logarithmic selectivity coefficients for Ag+ over most of the interfering cations have been determined as <â8.0. Under optimal conditions, a lower detection limit of 2.2Â ÃÂ 10â10Â M can be obtained for the membrane Ag+-ISE.
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Authors
Jun Zhang, Jiawang Ding, Tanji Yin, Xuefeng Hu, Shunyang Yu, Wei Qin,