Developing a nanostructure electrochemical sensor for simultaneous determination of cysteine and tryptophan
作者： Ali Benvidi , Mohammad M. Ansaripour , Nooshin Rajabzadeh , Hamid R. Zare , Bi-Bi Fatemeh Mirjalili
DOI: 10.1039/C5AY00727E
关键词:
摘要: A modified carbon paste electrode (CPE) was prepared based on a newly synthesized compound 14-(4-hydroxyphenyl)-14-H-dibenzo [a, j]-xanthene (HDX) and multi-wall carbon nanotubes (MWCNTs). At first, the redox properties of the modified electrode were studied by cyclic voltammetry (CV). Then, the modified electrode was used as an electrochemical sensor for the oxidation of cysteine (Cys). Under the optimum pH of 8.5, the overpotential of Cys oxidation decreased about 280 mV at the modified electrode rather than at the …
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