Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry
The electrochemical behaviour of auramine O on the hanging mercury drop electrode has been investigated by cyclic and square wave voltammetry method. Reduction peak of auramine O was irreversible and adsorptive on the hanging mercury drop electrode. The optimal conditions were chosen to be Briton–Ro...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/8639528 |
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| author | Thuong Nguyen Thi Kim Thi Thu Bui Anh Tuan Pham Van Thang Duong Thi Huong Giang Le |
| author_facet | Thuong Nguyen Thi Kim Thi Thu Bui Anh Tuan Pham Van Thang Duong Thi Huong Giang Le |
| author_sort | Thuong Nguyen Thi Kim |
| collection | DOAJ |
| description | The electrochemical behaviour of auramine O on the hanging mercury drop electrode has been investigated by cyclic and square wave voltammetry method. Reduction peak of auramine O was irreversible and adsorptive on the hanging mercury drop electrode. The optimal conditions were chosen to be Briton–Robinson buffer pH 9.0, accumulation potential −0.5 V vs. Ag/AgCl/KCl, accumulation time 60 s, pulse amplitude 250 mV·s−1, and frequency 50 Hz. At the optimum experimental conditions, the peak of the target analyte was sharp and asymmetric. The linearity of the peak current depending on the concentration ranged from 4.0 × 10−8 to 6.4 × 10−7 mol L−1. The limit of detection and limit of quantitation were 2.46 × 10−8 mol L−1 and 8.21 × 10−8 mol L−1, respectively. The recovery and relative standard deviation were 94.9% and 2.0% (n = 5). The developed method was successfully applied to determine auramine O in chicken samples with an appropriate sample preparation. |
| format | Article |
| id | doaj-art-cf044e8456cb41bab9d246d958b3991c |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-cf044e8456cb41bab9d246d958b3991c2025-02-03T06:12:33ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732019-01-01201910.1155/2019/86395288639528Fast Determination of Auramine O in Food by Adsorptive Stripping VoltammetryThuong Nguyen Thi Kim0Thi Thu Bui1Anh Tuan Pham2Van Thang Duong3Thi Huong Giang Le4Department of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, VietnamDepartment of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, VietnamDepartment of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, VietnamDepartment of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, VietnamDepartment of Analytical Chemistry, Faculty of Chemistry, VNU University of Science, 19 Le Thanh Tong Street, Hanoi, VietnamThe electrochemical behaviour of auramine O on the hanging mercury drop electrode has been investigated by cyclic and square wave voltammetry method. Reduction peak of auramine O was irreversible and adsorptive on the hanging mercury drop electrode. The optimal conditions were chosen to be Briton–Robinson buffer pH 9.0, accumulation potential −0.5 V vs. Ag/AgCl/KCl, accumulation time 60 s, pulse amplitude 250 mV·s−1, and frequency 50 Hz. At the optimum experimental conditions, the peak of the target analyte was sharp and asymmetric. The linearity of the peak current depending on the concentration ranged from 4.0 × 10−8 to 6.4 × 10−7 mol L−1. The limit of detection and limit of quantitation were 2.46 × 10−8 mol L−1 and 8.21 × 10−8 mol L−1, respectively. The recovery and relative standard deviation were 94.9% and 2.0% (n = 5). The developed method was successfully applied to determine auramine O in chicken samples with an appropriate sample preparation.http://dx.doi.org/10.1155/2019/8639528 |
| spellingShingle | Thuong Nguyen Thi Kim Thi Thu Bui Anh Tuan Pham Van Thang Duong Thi Huong Giang Le Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry Journal of Analytical Methods in Chemistry |
| title | Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry |
| title_full | Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry |
| title_fullStr | Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry |
| title_full_unstemmed | Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry |
| title_short | Fast Determination of Auramine O in Food by Adsorptive Stripping Voltammetry |
| title_sort | fast determination of auramine o in food by adsorptive stripping voltammetry |
| url | http://dx.doi.org/10.1155/2019/8639528 |
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