Ion selective electrodes based on chalcogenide glasses

JOURNAL OF ALLOYS AND COMPOUNDS

卷:495

Article; Proceedings Paper

Conde Garrido, Juan Manuel¹  Andrea Urena, Maria¹  Arcondo, Bibiana¹ 

[1] Univ Buenos Aires, Lab Solidos Amorfos, Fac Ingn, INTECIN,CONICET, Buenos Aires, DF, Argentina

关键词: Amorphous materials;    Ionic conduction;    Liquid quenching;   

DOI  :  10.1016/j.jallcom.2009.08.093

来源: Elsevier

【 摘 要 】

The properties of chalcogenide glasses as sensitive membranes in ion selective electrodes (ISEs) have been investigated It is shown that ISEs based on the AgGeSe system show sensitivity to the presence of Ag(+) and Cu(2+) ions in aqueous solutions and in both cases they exhibit super-nernstian responses The analytical properties such as reproducibility, linear range, sensitivity and detection limit were studied. The response of the electrodes is apparently conditioned by the amount of Ag in the membrane The addition of Cu to the membrane composition does not Improve the sensitivity of the electrodes. The sensitivity to Cu(2+) ions of thin film ISEs of composition (AgCu)GeSe was found to be smaller than the one of bulk ISEs, but still super-nernstian (C) 2009 Elsevier B V All rights reserved.

【 授权许可】

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