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dc.contributor.authorTang, Youxia-
dc.contributor.authorWang, Yanming-
dc.contributor.authorLiu, Gen-
dc.contributor.authorSun, Dengming-
dc.identifier.issn0975-0975(Online); 0376-4710(Print)-
dc.description.abstractSilver 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 pH 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 5.00×10-7 –3.00×10-4 mol L-1 and 7.50×10-7–7.50×10-4 mol L-1, respectively with detection limits of 7.50×10-8 mol L-1 and 2.50×10-7 mol L-1, respectively. The proposed method has been applied for simultaneous determination SY and TT in beverage with satisfactory results. en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJC-A Vol.55A(03) [March 2016]en_US
dc.subjectAnalytical chemistryen_US
dc.subjectElectroanalytical methodsen_US
dc.subjectModified electrodesen_US
dc.subjectComposite filmsen_US
dc.subjectSunset yellowen_US
dc.titleDetermination of sunset yellow and tartrazine using silver and poly (L-cysteine) composite film modified glassy carbon electrodeen_US
Appears in Collections:IJC-A Vol.55A(03) [March 2016]

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