Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples
In this study, a sensitive and selective voltammetric method based on poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode (poly(DPASA)/GCE) was developed for determination of gallic acid. Appearance of an irreversible oxidative peak at both bare GCE and poly(DPASA)/GCE for gallic ac...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Arabian Journal of Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535222001691 |
| _version_ | 1811257042714755072 |
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| author | Zelalem Bitew Adane Kassa Beyene Misgan |
| author_facet | Zelalem Bitew Adane Kassa Beyene Misgan |
| author_sort | Zelalem Bitew |
| collection | DOAJ |
| description | In this study, a sensitive and selective voltammetric method based on poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode (poly(DPASA)/GCE) was developed for determination of gallic acid. Appearance of an irreversible oxidative peak at both bare GCE and poly(DPASA)/GCE for gallic acid with about three folds current enhancement and much reduced potential at poly(DPASA)/GCE showed catalytic property of the modifier towards oxidation of gallic acid. Under optimized conditions, Adsorptive stripping square wave voltammetric peak current response of the poly(DPASA)/GCE showed linear dependence with gallic acid concentration in the range 5.00 × 10−7–3.00 × 10−4 mol L−1 with limit of detection of 4.35 × 10−9. Spike recovery results between 94.62 and 99.63, 95.00–99.80 and 97.25–103.20% of gallic acid in honey, raw peanut, and commercial peanut butter samples respectively, interference recovery results with less than 4.11% error in the presence of uric acid and ascorbic acid, lower LOD and relatively wider dynamic range than most of the previously reported methods validated the potential applicability of the method based on poly(DPASA)/GCE for determination of gallic acid real samples including in honey and peanut samples. |
| first_indexed | 2024-04-12T17:50:24Z |
| format | Article |
| id | doaj.art-cf197013939249fa9edb3adfeff73b54 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-04-12T17:50:24Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-cf197013939249fa9edb3adfeff73b542022-12-22T03:22:31ZengElsevierArabian Journal of Chemistry1878-53522022-07-01157103853Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samplesZelalem Bitew0Adane Kassa1Beyene Misgan2Department of Chemistry, College of Science, Bahir Dar University, Ethiopia; Corresponding author.Department of Chemistry, College of Science, Bahir Dar University, Ethiopia; Department of Chemistry, College of Natural and Computational Sciences, Debre Markos University, EthiopiaDepartment of Chemistry, College of Science, Bahir Dar University, EthiopiaIn this study, a sensitive and selective voltammetric method based on poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode (poly(DPASA)/GCE) was developed for determination of gallic acid. Appearance of an irreversible oxidative peak at both bare GCE and poly(DPASA)/GCE for gallic acid with about three folds current enhancement and much reduced potential at poly(DPASA)/GCE showed catalytic property of the modifier towards oxidation of gallic acid. Under optimized conditions, Adsorptive stripping square wave voltammetric peak current response of the poly(DPASA)/GCE showed linear dependence with gallic acid concentration in the range 5.00 × 10−7–3.00 × 10−4 mol L−1 with limit of detection of 4.35 × 10−9. Spike recovery results between 94.62 and 99.63, 95.00–99.80 and 97.25–103.20% of gallic acid in honey, raw peanut, and commercial peanut butter samples respectively, interference recovery results with less than 4.11% error in the presence of uric acid and ascorbic acid, lower LOD and relatively wider dynamic range than most of the previously reported methods validated the potential applicability of the method based on poly(DPASA)/GCE for determination of gallic acid real samples including in honey and peanut samples.http://www.sciencedirect.com/science/article/pii/S1878535222001691Gallic acidDiphenyl amine sulfonic acidAdsorptive anodic striping square wave voltammetryHoneyPeanut |
| spellingShingle | Zelalem Bitew Adane Kassa Beyene Misgan Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples Arabian Journal of Chemistry Gallic acid Diphenyl amine sulfonic acid Adsorptive anodic striping square wave voltammetry Honey Peanut |
| title | Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| title_full | Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| title_fullStr | Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| title_full_unstemmed | Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| title_short | Poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| title_sort | poly diphenylamine 4 sulfonic acid modified glassy carbon electrode for voltammetric determination of gallic acid in honey and peanut samples |
| topic | Gallic acid Diphenyl amine sulfonic acid Adsorptive anodic striping square wave voltammetry Honey Peanut |
| url | http://www.sciencedirect.com/science/article/pii/S1878535222001691 |
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