Application of a Bismuth-Silver Nanosensor for the Simultaneous Determination of Pt-Rh and Pd-Rh Complexes

被引：6

作者：

van der Horst, Charlton ^{[1
,2
]}

Silwana, Bongiwe ^{[1
,2
]}

Iwuoha, Emmanuel ^{[1
]}

Somerset, Vernon ^{[2
]}

机构：

[1] Univ Western Cape, Dept Chem, ZA-7535 Bellville, South Africa

[2] CSIR, NRE, ZA-7600 Stellenbosch, South Africa

来源：

JOURNAL OF NANO RESEARCH | 2016年 / 44卷

基金：

新加坡国家研究基金会;

关键词：

Simultaneous determination; Platinum group metals; Bismuth-Silver Bimetallic Nanosensor; Dimethylglyoxime; Differential pulse adsorptive stripping voltammetry; STRIPPING VOLTAMMETRIC DETERMINATION; FILM ELECTRODE; BIMETALLIC NANOPARTICLES; CARBON ELECTRODES; FRESH-WATER; PLATINUM; CHEMISTRY; PALLADIUM; COLLOIDS; CLUSTERS;

D O I：

10.4028/www.scientific.net/JNanoR.44.126

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work describes the development of an electrochemical sensor for the simultaneous determination of Pd-Rh and Pt-Rh complexes using a bismuth-silver bimetallic nanofilm modified glassy carbon electrode. The electrochemical sensor was prepared by dropcasting bismuth-silver bimetallic nanoparticles on to glassy carbon electrode surfaces. The HRTEM microscopy and UV-Vis spectroscopy results of the bismuth-silver nanoparticles were compared with other work in literature. The developed nanosensor exhibited a linear working range of 0.4-1.4 ng/L for Pd-Rh and 0.8-1.2 ng/L for Pt-Rh DMG complexes, respectively. Very low detection limits (S/N = 3) of 0.19 ng/L for Pd(II), 0.2 ng/L Pt(II) and 0.22 ng/L for Rh(III) were obtained and the sensor was successfully applied to environmental samples.

引用

页码：126 / 133

页数：8

共 44 条

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