Gold nanoparticles solid contact for ion-selective electrodes of highly stable potential readings

被引：83

作者：

Jaworska, Ewa ^{[1
]}

Wojcik, Michal ^{[1
]}

Kisiel, Anna ^{[1
]}

Mieczkowski, Jozef ^{[1
]}

Michalska, Agata ^{[1
]}

机构：

[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland

来源：

TALANTA | 2011年 / 85卷 / 04期

关键词：

All-solid-state potentiometric sensors; Gold-nanoparticles; Potentiometry; Stability; Selectivity; CONDUCTING POLYMER; POTENTIOMETRIC SENSORS; MEMBRANE ELECTRODES; INTERMEDIATE PHASE; CARBON NANOTUBES; DETECTION LIMIT; TRANSDUCERS; MONOLAYER; FLUXES;

D O I：

10.1016/j.talanta.2011.07.049

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Internal solution free ion-selective electrodes were prepared applying for the first time gold nanoparticles as a solid contact layer. The presence of a layer of gold nanoparticles stabilized with aliphatic thiols at the back side of the membrane resulted in highly stable potentiometric responses of the sensors, good selectivities and close to Nernstian slopes. Electrochemical studies have confirmed that the applied material is effectively working as capacitive solid contact, yielding high stability sensors. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1986 / 1989

页数：4

共 32 条

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