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Potentiometric determination of urinary iodide using a nanoparticle modified carbon paste electrode

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Abstract

A simple and sensitive solid carbon paste electrode (CPE) based on the nanoparticles of silver iodide and silver sulfide was prepared for potentiometric determination of iodide in urine samples. The results indicated that the provided CPE exhibited a wide linear range (8.0 × 10−9 to 1.0 × 10−3 mol L−1), low detection limit (7.0 × 10−9 mol L−1), near Nernstian sensitivity (55.3 mV per decade) and short response time (<60 s) to iodide. The provided CPE was successfully applied for the determination of iodide in human urine samples with good stability and repeatability.

Graphical abstract: Potentiometric determination of urinary iodide using a nanoparticle modified carbon paste electrode

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Publication details

The article was received on 10 Feb 2017, accepted on 27 Apr 2017 and first published on 28 Apr 2017


Article type: Paper
DOI: 10.1039/C7AY00358G
Citation: Anal. Methods, 2017, Advance Article
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    Potentiometric determination of urinary iodide using a nanoparticle modified carbon paste electrode

    N. Wang, F. Wang, Y. Liao, H. Liu, Y. Li and X. He, Anal. Methods, 2017, Advance Article , DOI: 10.1039/C7AY00358G

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