期刊
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
卷 86, 期 2, 页码 303-310出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036024412020306
关键词
tartrazine; multi-walled carbon nanotubes; CV; modified electrode; drinks
资金
- National Science Foundation of China [20975043/B05]
- Opened Foundation of Key Laboratory for the Synthesis and Application of Organic Functional Molecules of Ministry of Education of China
- Opened Foundation of Jiangsu Province Key Laboratory for Chemistry of Low-Dimensional Materials [JSKC08049]
- Science Foundation of Huai-An City [SN0675]
- Science Foundation of education Department of Jiangsu Province of China [07KJD610028]
- Jiangsu Higher Institutions Key Basic Research Projects of Natural Science [7 KJA15012]
Electrochemical reduction of tartrazine on multi-walled carbon nanotube-modied pyrolytic graphite electrode is investigated. A simple, sensitive and inexpensive method for determination of tartrazine in drinks is proposed. The accuracy and reproducibility of the determination method for various known amounts of tartrazine were evaluated. This method was satisfactorily applied for the determination of tartrazine in drinks. The reduction peak currents were proportional to tartrazine concentrations over two intervals in the range from 2.0 to 70.0 mg l(-1) and from 70.0 to 230.0 mg l(-1), and the detection limit for tartrazine is 0.5 mg l(-1).
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