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Easy modification of glassy carbon electrode for simultaneous determination of ascorbic acid, dopamine and uric acid.
Biosens Bioelectron. 2009 Apr 15; 24(8):2712-5.BB

Abstract

A glassy carbon electrode (GCE) has been modified by electrochemical oxidation in mild acidic media (0.1 mol l(-1) H(2)SO(4)) and could be applied for individual and simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid (UA). Oxidized GCE shows a single redox couple (E(0)'=-2.5 mV) which is based on the formation functional groups during the electrochemical pretreatment process. Proposed GCE successfully decreases the over potentials for the oxidation process of these species (AA, DA and UA) comparing with bare GCE. The oxidized GCE has its own simplicity, stability, high sensitivity and possesses the potential for simultaneous determination of AA, DA and UA.

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Authors+Show Affiliations

Thiagarajan S
Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
Tsai TH
No affiliation info available
Chen SM
No affiliation info available

MeSH

Ascorbic AcidBiosensing TechniquesCarbonComplex MixturesDopamineElectrochemistryElectrodesEquipment DesignEquipment Failure AnalysisGlassOxidation-ReductionReproducibility of ResultsSensitivity and SpecificityUric Acid

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19162467

Citation

Thiagarajan, Soundappan, et al. "Easy Modification of Glassy Carbon Electrode for Simultaneous Determination of Ascorbic Acid, Dopamine and Uric Acid." Biosensors & Bioelectronics, vol. 24, no. 8, 2009, pp. 2712-5.
Thiagarajan S, Tsai TH, Chen SM. Easy modification of glassy carbon electrode for simultaneous determination of ascorbic acid, dopamine and uric acid. Biosens Bioelectron. 2009;24(8):2712-5.
Thiagarajan, S., Tsai, T. H., & Chen, S. M. (2009). Easy modification of glassy carbon electrode for simultaneous determination of ascorbic acid, dopamine and uric acid. Biosensors & Bioelectronics, 24(8), 2712-5. https://doi.org/10.1016/j.bios.2008.12.010
Thiagarajan S, Tsai TH, Chen SM. Easy Modification of Glassy Carbon Electrode for Simultaneous Determination of Ascorbic Acid, Dopamine and Uric Acid. Biosens Bioelectron. 2009 Apr 15;24(8):2712-5. PubMed PMID: 19162467.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Easy modification of glassy carbon electrode for simultaneous determination of ascorbic acid, dopamine and uric acid. AU - Thiagarajan,Soundappan, AU - Tsai,Tsung-Hsuan, AU - Chen,Shen-Ming, Y1 - 2008/12/13/ PY - 2008/10/24/received PY - 2008/12/02/revised PY - 2008/12/03/accepted PY - 2009/1/24/entrez PY - 2009/1/24/pubmed PY - 2009/5/27/medline SP - 2712 EP - 5 JF - Biosensors & bioelectronics JO - Biosens Bioelectron VL - 24 IS - 8 N2 - A glassy carbon electrode (GCE) has been modified by electrochemical oxidation in mild acidic media (0.1 mol l(-1) H(2)SO(4)) and could be applied for individual and simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid (UA). Oxidized GCE shows a single redox couple (E(0)'=-2.5 mV) which is based on the formation functional groups during the electrochemical pretreatment process. Proposed GCE successfully decreases the over potentials for the oxidation process of these species (AA, DA and UA) comparing with bare GCE. The oxidized GCE has its own simplicity, stability, high sensitivity and possesses the potential for simultaneous determination of AA, DA and UA. SN - 1873-4235 UR - https://www.unboundmedicine.com/medline/citation/19162467/Easy_modification_of_glassy_carbon_electrode_for_simultaneous_determination_of_ascorbic_acid_dopamine_and_uric_acid_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-5663(08)00652-0 DB - PRIME DP - Unbound Medicine ER -
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