CARBON-SUPPORTED PLATINUM NANOPARTICLE SOLID-STATE ION SELECTIVE ELECTRODES FOR THE DETERMINATION OF POTASSIUM

被引：21

作者：

Paczosa-Bator, Beata ^{[1
]}

Cabaj, Leszek ^{[1
]}

Piek, Magdalena ^{[1
]}

Piech, Robert ^{[1
]}

Kubiak, Wladyslaw W. ^{[1
]}

机构：

[1] AGH UST Univ Sci & Technol, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland

来源：

ANALYTICAL LETTERS | 2015年 / 48卷 / 17期

关键词：

Carbon black; Nanomaterials; Platinum nanoparticles; Potassium-selective electrodes; Solid contact; BLACK; SENSORS;

D O I：

10.1080/00032719.2015.1045594

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This article reports the influence of the amount of platinum in carbon supported platinum nanoparticle solid-state ion selective electrodes for the determination of potassium. All developed electrodes showed excellent metrological parameters during potentiometric measurements; however, the most stable and reproducible linear response toward potassium ions was observed for electrodes with 15wt% platinum nanoparticles in the carbon black layer. These electrodes also exhibited low potential drift as shown by monitoring the potential of the electrodes under open circuit conditions (7.0 +/- 0.5 mu V h(-1) over 172h) and applying constant current in chronopotentiometric measurements (40.3 +/- 0.9 mu V h(-1) for a current of 10 nA).

引用

页码：2773 / 2785

页数：13

共 24 条

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