Electrochemical detection of dopamine using water-soluble sulfonated graphene

• Published in: Electrochimica acta Vol. 102; pp. 58 - 65
• Main Authors: Li, Su-Juan, He, Jun-Zhi, Zhang, Meng-Jie, Zhang, Rong-Xia, Lv, Xia-Lei, Li, Shao-Hua, Pang, Huan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.07.2013
• Subjects: Ascorbic acid; Charging; Dopamine; Electrochemical sensor; Fourier transforms; Graphene; Oxidation; Scanning electron microscopy; Selectivity; Sulfonated graphene; Uric acid; Selectivity; Dopamine; Electrochemical sensor; Sulfonated graphene

DPV responses of dopamine (DA) at sulfonated graphene based glassy carbon electrode in the presence of ascorbic acid (AA) and uric acid (UA). The separation of the oxidation peak potentials for AA-DA, DA-UA and UA-AA was about 227mV, 125mV and 352mV, which allowed selectively determining DA. In the...