Easy Activation of Pencil Graphite Electrode as Sensing Platform for Determination of Bisphenol A
- Авторы: Mohammad Ali Kamyabi 1, Nasim Hajari 1
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Учреждения:
- Department of Chemistry, Colleges of Science, University of Zanjan
- Выпуск: Том 74, № 3 (2019)
- Страницы: 286-295
- Раздел: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183176
- DOI: https://doi.org/10.1134/S1061934819030109
- ID: 183176
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Аннотация
The presented study focuses on the optimum conditions for chemical activation of pencil graphite electrodes (PGE) used in the determination of bisphenol A (BPA). The prepared ethanol–HCl mixture for chemical activation of pencil graphite electrode exhibits better activation factor compared with traditional activation methods like anodizing. The obtained porous and highly conductive surface of PGE can be used as a sensing device. The electrochemical behavior of BPA at the modified sensor was investigated. The effects of pH, accumulation time and sensor activation were examined. In the optimum experimental conditions, adsorptive differential pulse voltammetry was used for determination of BPA, which exhibits a linear calibration graph of Ip versus BPA concentration in the range 1.25 × 10–8 to 1.34 × 10–4 M. The calculated detection limit for S/N = 3 was 1.0 nM. The presented sensor is reusable. The activated PGE was applied for the determination of BPA leached from baby bottles as a real sample using spike method.
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Mohammad Ali Kamyabi
Department of Chemistry, Colleges of Science, University of Zanjan
Автор, ответственный за переписку.
Email: maKamyabi@gmail.com
Иран, Zanjan, P.O. Box 4537138791
Nasim Hajari
Department of Chemistry, Colleges of Science, University of Zanjan
Email: maKamyabi@gmail.com
Иран, Zanjan, P.O. Box 4537138791