Modified carbon paste electrode for potentiometric determination of aluminium ion in spiked real water sample
- Authors: Mohamed M.E.1
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Affiliations:
- Chemistry Department, Faculty of Science
- Issue: Vol 52, No 8 (2016)
- Pages: 754-761
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188081
- DOI: https://doi.org/10.1134/S1023193516080073
- ID: 188081
Cite item
Abstract
The present paper describes the development of a new chemically modified carbon paste electrode based on azithromycin (AMC) that considered as a selective aluminium recognition agent in the carbon paste electrode (CPE). This electrode was fully characterized in terms of composition, response time, usable pH range and temperature. The electrode exhibited a Nernstian response for Al3+ ion over a concentration range from 7.0 × 10–6 to 1.0 × 10–2 mol L–1 with a slope of 21.3 ± 0.18 mV decade–1 and the limit of detection was 6.0 × 10–6 mol L−1. It had a response time of about 6 s. The proposed sensor possesses a very good selectivity with respect to a variety of other cations. Finally this modified electrode was applied for the determination of the concentration of Al3+ ion in different water samples and the obtained results were comparable with those obtained with atomic absorption spectrometer (AAS).
About the authors
Marwa ElBadry Mohamed
Chemistry Department, Faculty of Science
Author for correspondence.
Email: marelbadry@gmail.com
Egypt, Cairo, 12613