ICCAS OpenIR
Determination of dopamine in the presence of ascorbic acid using a poly(amidosulfonic acid) modified glassy carbon electrode
Zhang, YZ; Jin, GY; Yang, ZS; Zhao, H
2004-07-01
Source PublicationMICROCHIMICA ACTA
ISSN1436-5073
Volume147Issue:4Pages:225-230
AbstractA glassy carbon electrode (GCE) was modified with electropolymerized films of amidosulfonic acid in pH 7.0 phosphate buffer solution (PBS) by cyclic voltammetry (CV). The modified electrode showed an excellent electrocatalytical effect on the oxidation of dopamine (DA). In pH 7.0 PBS, the anodic peak current increased linearly with the concentration of DA in the range of 5.0x10(-7)similar to 1.0x10(-4) mol dm(-3), with a correlation coefficient of 0.9932, and a detection limit (S/N=3) of 1.0x 10(-7) mol dm(-3). The relative standard deviation of 10 successive scans was 2.5% for 1.0x10(-6) mol dm(-3) DA. The interference of ascorbic acid (AA) with the determination of DA could be eliminated because of the very distinct attracting interaction between DA cations and the negatively poly(amidosulfonic acid) film in pH 7.0 PBS. The proposed method exhibited good recovery and reproducibility.
KeywordChemically Modified Electrode Amidosulfonic Acid Dopamine Electropolymerization Electrocatalysis
DOI10.1007/s00604-004-0235-1
Indexed BySCI
Language英语
WOS IDWOS:000222646500004
PublisherSPRINGER WIEN
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81782
Collection中国科学院化学研究所
Corresponding AuthorZhang, YZ
Affiliation1.Anhui Normal Univ, Sch Chem & Mat Sci, Wuhu 241000, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, YZ,Jin, GY,Yang, ZS,et al. Determination of dopamine in the presence of ascorbic acid using a poly(amidosulfonic acid) modified glassy carbon electrode[J]. MICROCHIMICA ACTA,2004,147(4):225-230.
APA Zhang, YZ,Jin, GY,Yang, ZS,&Zhao, H.(2004).Determination of dopamine in the presence of ascorbic acid using a poly(amidosulfonic acid) modified glassy carbon electrode.MICROCHIMICA ACTA,147(4),225-230.
MLA Zhang, YZ,et al."Determination of dopamine in the presence of ascorbic acid using a poly(amidosulfonic acid) modified glassy carbon electrode".MICROCHIMICA ACTA 147.4(2004):225-230.
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