Voltammetric Determination of Carmoisine in Soft Drinks
- 作者: Lipskikh O.I.1, Korotkova E.I.1, Dorozhko E.V.1, Derina K.V.1, Voronova O.A.1
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隶属关系:
- Tomsk Polytechnic University
- 期: 卷 53, 编号 14 (2017)
- 页面: 1427-1431
- 栏目: Analysis of Substances
- URL: https://journals.rcsi.science/0020-1685/article/view/158360
- DOI: https://doi.org/10.1134/S0020168517140114
- ID: 158360
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详细
A voltammetric study of the electrochemical behavior of red food azo dye Carmoisine on a glassy carbon electrode (GCE) is performed. The influence of various factors on the cathode signal of the dye is shown: pH and values of accumulation time and potential sweep rate. The operating conditions of Carmoisine identification in model media are selected: pH = 1.65, Eacc = –0.1 V, tacc = 10 s, W = 100 mV/s. A linear dependence of the electrolytic reduction current of the dye on its concentration at –0.15 V is observed within 0.05–0.5 mg/L; detection limit of Carmoisine is 0.02 mg/L. A comparative determination of Carmoisine in soft drinks is performed by voltammetric and spectrophotometric methods.
作者简介
O. Lipskikh
Tomsk Polytechnic University
编辑信件的主要联系方式.
Email: lipskih-olga@yandex.ru
俄罗斯联邦, Tomsk, 634050
E. Korotkova
Tomsk Polytechnic University
Email: lipskih-olga@yandex.ru
俄罗斯联邦, Tomsk, 634050
E. Dorozhko
Tomsk Polytechnic University
Email: lipskih-olga@yandex.ru
俄罗斯联邦, Tomsk, 634050
K. Derina
Tomsk Polytechnic University
Email: lipskih-olga@yandex.ru
俄罗斯联邦, Tomsk, 634050
O. Voronova
Tomsk Polytechnic University
Email: lipskih-olga@yandex.ru
俄罗斯联邦, Tomsk, 634050
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