A comparative study of four 20-membered N2S4-crown ethers as ionophores for polymeric membrane silver selective electrodes

Zhang, Jun; Yu, Shun Yang; Yin, Tan Ji; Hu, Xue; Qin, Wei

doi:10.1016/j.cclet.2009.11.028

Cited by 9 publications

(1 citation statement)

References 7 publications

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“…In particularly, ion-selective electrodes (ISEs) is the most important target in analytical applications due to their good properties such as high selectivity, good precision, low cost and simplicity. [4][5][6][7][8] Since dithiacrown ethers were employed in the first neutral carrier-type Ag + -ISEs, which showed high Ag + -selectivity against alkali metal ions, 9 thiaethers have been a very important class of ionophores for Ag + -ISEs. [6][7][8][10][11][12] However, the applications of crown ethers are often subject to the difficulties of synthesis technique.…”

Section: Introductionmentioning

confidence: 99%

CHARACTERIZATION OF A NEW NEW Ag+ -SELECTIVE ELECTRODE BASED ON N3S5-THIAAZACROWN ETHER AS NEUTRAL IONOPHORE

Zhang

Ding

Qin

2011

J. Chil. Chem. Soc.

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A N 3 S 5 -azathiacrown ether has been newly synthesized in high yield. Electrode using this compound as ionophore shows high selectivity and sensitivity towards Ag + . The effect of plasticizers and ion-exchanger on the properties of electrode was also studied and detection limit of 3.8 × 10 −8 M Ag + was obtained. This sensor has a fast response time of <12 s and performs satisfactorily over a wide pH range of 3.6 __ 8.2. The electrode was also successfully used as indicator electrode in the titration of Cl -in tap water.

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