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<p>Determination of sunset yellow and tartrazine using silver and poly (L-cysteine) composite film modified glassy carbon electrode</p>

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Title Statement <p>Determination of sunset yellow and tartrazine using silver and poly (L-cysteine) composite film modified glassy carbon electrode</p>
 
Added Entry - Uncontrolled Name Liu, Gen
Tang, Youxia ; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, PR China
Sun, Dengming ; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, PR China
Wang, Yanming ; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, PR China
School of Chemistry and Materials Science, Huaibei Normal University
 
Uncontrolled Index Term catalysis and analytical chemistry
Analytical chemistry, Electroanalytical methods, Electrodes, Modified electrodes, Films, Composite films, Sunset yellow, Tartrazine
 
Summary, etc. <p style="text-align: justify;">Silver and poly(L-cysteine) composite film modified glassy carbon electrode (PLC/Ag/GCE) has been fabricated via cyclic voltammetry and used for investigation of the electrochemical behavior of sunset yellow (SY) and tartrazine (TT). A pair of anodic peak at 0.760 V (vs. Ag/AgCl) and cathodic peak at 0.701 V (vs. Ag/AgCl) for SY and an anodic peak at 1.013 V (vs. Ag/AgCl) of TT are observed in <em>p</em>H 4.5 phosphate buffer solution. Based on the two well-resolved anodic peaks of SY and TT, a novel electrochemical method has been successfully developed for simultaneous determination of SY and TT using differential pulse voltammetry. Under the optimized experimental conditions, the linear range for the determination of SY and TT are 5.00×10<sup>-7</sup> –3.00×10<sup>-4</sup> mol L<sup>-1</sup> and 7.50×10<sup>-7</sup>–7.50×10<sup>-4</sup> mol L<sup>-1</sup>, respectively with detection limits of 7.50×10<sup>-8</sup> mol L<sup>-1</sup> and 2.50×10<sup>-7</sup> mol L<sup>-1</sup>, respectively. The proposed method has been applied for simultaneous determination SY and TT in beverage with satisfactory results.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-22 10:44:49
 
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http://op.niscair.res.in/index.php/IJCA/article/view/9497
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 55, ##issue.no## 3 (2016): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/9497/26503
http://op.niscair.res.in/index.php/IJCA/article/download/9497/26504
http://op.niscair.res.in/index.php/IJCA/article/download/9497/26505
 
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