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Issue 20, 2017
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Fabrication of a flexible carbon cloth based solid contact iodide selective electrode

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Abstract

Elimination of the inner filling electrolyte of classical ISEs to overcome their associated drawbacks is the major driving force for the evolution of solid contact ISEs. Carbon cloth is a cheap and readily available material which can easily replace the existing carbon nanotubes/conducting polymer based solid contact ISEs. The present work is focussed on the fabrication of carbon cloth based solid contact iodide ISEs and their application studies. The electrode exhibits a Nernstian response in the 10−6 to 10−1 M concentration range and a quantifiable non-Nernstian response in the 10−7 to 10−6 M concentration range. A lower limit of detection of 1 × 10−7 M is obtained. A plausible interfacial ion to electron transfer mechanism in carbon cloth based ISEs is illustrated. The electrode shows good sensitivity, selectivity, stability and response time compared to the existing solid contact iodide ISEs. The quantitative recovery of iodide from natural waters and table salt unequivocally establishes the suitability of CC-I-ISE in real sample analysis.

Graphical abstract: Fabrication of a flexible carbon cloth based solid contact iodide selective electrode

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Publication details

The article was received on 19 Mar 2017, accepted on 24 Apr 2017 and first published on 15 May 2017


Article type: Paper
DOI: 10.1039/C7AY00733G
Citation: Anal. Methods, 2017,9, 2947-2956
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    Fabrication of a flexible carbon cloth based solid contact iodide selective electrode

    J. Cincy, T. E. Milja and K. P. Prathish, Anal. Methods, 2017, 9, 2947
    DOI: 10.1039/C7AY00733G

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