A Selective and Sensitive Sensor for Determination of Sulfide in Aquatic Environment

Safavi Afsaneh; Abi Alireza

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A Selective and Sensitive Sensor for Determination of Sulfide in Aquatic Environment

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A cost-effective, sensitive, and selective electrochemical sensor for the analysis of sulfide based on the high affinity of sulfide to metallic silver is proposed. To achieve high sensitivity while lowering the cost of the sensor, silver nanoparticles (Ag NPs), which possess larger metal surface area-to-volume ratio compared with bulk silver, were employed for the development of the sensor. The sensor was prepared through electrodeposition of Ag NPs on the surface of a carbon ionic liquid electrode using potentiostatic double-pulse technique, and it showed a wide linear range from 25 to 2500 mu M of sulfide with a detection limit of 6.02 mu M. Since the analysis of sulfide was performed at a remarkably low detection potential, the presented sensor offered high selectivity against common interferents and was successfully applied to the analysis of sulfide in a hot spring water sample.

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来源
《IEEE sensors journal》 |2015年第6期|3507-3513|共7页
作者
Safavi Afsaneh; Abi Alireza;
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作者单位

Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71348, Iran;

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原文格式 PDF
正文语种英语
中图分类 TP212;
关键词
Carbon ionic liquid electrode; double-pulse technique; silver nanoparticles; sulfide sensor;

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A Selective and Sensitive Sensor for Determination of Sulfide in Aquatic Environment

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