Simultaneous Determination of Carmine and Amaranth Based on a Poly(L-Arginine)–Graphene Modified Electrode
- 作者: Hu Q.1, Gao H.1, Wang Y.1, Ma W.1, Sun D.1
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隶属关系:
- College of Chemistry and Materials Science, Huaibei Normal University Huaibei
- 期: 卷 73, 编号 8 (2018)
- 页面: 817-823
- 栏目: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182799
- DOI: https://doi.org/10.1134/S1061934818080051
- ID: 182799
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详细
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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作者简介
Q. Hu
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
中国, Anhui, 235000
H. Gao
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
编辑信件的主要联系方式.
Email: gaohui20032@163.com
中国, Anhui, 235000
Y. Wang
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
中国, Anhui, 235000
W. Ma
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
Email: sundengming@126.com
中国, Anhui, 235000
D. Sun
College of Chemistry and Materials Science, Huaibei Normal University Huaibei
编辑信件的主要联系方式.
Email: sundengming@126.com
中国, Anhui, 235000