Selective Determination of Dopamine at Poly Sulfosalicylic Acid/Graphene Modified Electrode with Composite Properties of Biochemical Materials

Abstract:

A new type of poly (sulfosalicylic acid)/graphene modified electrode (PSA/GH/GCE) was fabricated by dispensing graphene (GH) on glassy carbon electrode (GCE) and then electro-polymerized sulfosalicylic acid onto GH/GCE with cyclic voltammtry method. It can be used with composite properties of biochemical materials for highly selective and sensitive detection of dopamine (DA) even in the presence of mass ascorbic acid (AA). The linear response range for DA was 70 nM to 700 μM, and the detection limit was 20 nM (S/N = 3).

• Periodical: Advanced Materials Research (Volume 600)
• Pages: 230-233
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.600.230
• Online since: November 2012
• Authors: Qiu Huan Han, Jian Fei Xia, Zong Hua Wang, Yan Zhi Xia, Fei Fei Zhang
• Keywords: Ascorbic Acid, Dopamine, Graphen, Modified Electrode, Sulfosalicylic Acid

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