| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1174668 | Analytical Biochemistry | 2008 | 6 Pages |
Abstract
A polymerized film of 3,5-dihydroxy benzoic acid (DBA) was prepared on the surface of a glassy carbon electrode (GCE) in neutral solution by cyclic voltammetry (CV). The poly(DBA) film-coated GCE exhibited excellent electrocatalytic activity toward the oxidation of dopamine (DA). A linear range of 1.0 × 10−7 to 1.0 × 10−4 M and a detection limit of 6.0 × 10−8 M were observed in pH 7.4 phosphate buffer solutions. Moreover, the interference of ascorbic acid (AA) was effectively eliminated. This work provides a simple and easy approach to selective detection of DA in the presence of AA.
Related Topics
Physical Sciences and Engineering
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Analytical Chemistry
Authors
Shurong Hou, Na Zheng, Haiyan Feng, Xiangjun Li, Zhuobin Yuan,