Simultaneous Determination of Carmine and Amaranth Based on a Poly(L-Arginine)–Graphene Modified Electrode
- Авторы: Hu Q.1, Gao H.1, Wang Y.1, Ma W.1, Sun D.1
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Учреждения:
- College of Chemistry and Materials Science, Huaibei Normal University Huaibei
- Выпуск: Том 73, № 8 (2018)
- Страницы: 817-823
- Раздел: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182799
- DOI: https://doi.org/10.1134/S1061934818080051
- ID: 182799
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Аннотация
The poly(L-arginine)–graphene modified glassy carbon electrode (GCE) was fabricated and the electrochemical behavior of carmine and amaranth on this electrode was studied by cyclic voltammetric method. Compared with poly(L-arginine)/GCE and GCE, the poly(L-arginine)–graphene modified GCE improved the sensitivity for the determination of carmine and amaranth. The experimental results indicated that the oxidation peaks of carmine and amaranth were separated at 121 mV in phosphate buffer solution at pH 2.5. The linear range for the simultaneous determination of carmine and amaranth were 7.5 × 10–7–7.5 × 10–5 M. The detection limits were 7 × 10–8 M for carmine and 2.5 × 10–7 M for amaranth. The method has been applied to the simultaneous determination of carmine and amaranth in drinks with satisfactory results.
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Об авторах
Q. Hu
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
Китай, Anhui, 235000
H. Gao
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Автор, ответственный за переписку.
Email: gaohui20032@163.com
Китай, Anhui, 235000
Y. Wang
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
Китай, Anhui, 235000
W. Ma
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
Китай, Anhui, 235000
D. Sun
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Автор, ответственный за переписку.
Email: sundengming@126.com
Китай, Anhui, 235000