Development of voltammetry analysis method of iron metal ions by solid-state membrane with carbon nanotube

Illyas Md Isa

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Type :	Article
Subject :	Q Science (General)
ISBN :	1411-9420
Main Author :	Illyas Md Isa
Title :	Development of voltammetry analysis method of iron metal ions by solid-state membrane with carbon nanotube
Hits :	28

Place of Production :	Tanjung Malim
Publisher :	Fakulti Sains & Matematik
Year of Publication :	2024
Notes :	Indonesian Journal of Chemistry
Corporate Name :	Universiti Pendidikan Sultan Idris
HTTP Link :	Click to view web link
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Abstract : Universiti Pendidikan Sultan Idris

This work developed a selectively modified electrode for measuring the Fe(II) ions in continuous integration using voltammetry techniques. The study assessed various aspects, such as linearity, scan rate, repeatability, and real sample analysis. The experiment is performed using differential pulse voltammetry (DPV). The findings of the study indicated that the voltammetry method exhibited a regression line of y = 36.507 ln(x) + 990.73, with a correlation value of 0.9627, with an optimum scan rate of 20 mV/s and good repeatability over five times measurement. On the other hand, when comparing the results using the UV-Vis spectrophotometric technique, the regression equation was found to be y = 0.20438x − 0.06987, with a correlation value of 0.99583. Notably, the voltammetry measurement outperformed the UV-Vis method since it allowed analysis of Fe(II) at concentrations up to 6.35 × 10−4 ppm (or 1.00 × 10−11 M), while the UV-vis measurement could only analyze up to 1.5 ppm (or 2.36 × 10−5 M). Consequently, the developed technique proves to be superior to the other methods for the analysis of Fe(II). © 2024, Gadjah Mada University. All rights reserved.

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