Alumina Polished Glassy Carbon Electrode as a Simple Electrode for Lower Potential Electrochemical Detection of Dopamine in its Sub-micromolar Level

Balamurugan Thirumalraj; Selvakumar Palanisamy; Shen Ming Chen; R. Sayee Kannan

doi:10.1002/elan.201500446

Alumina Polished Glassy Carbon Electrode as a Simple Electrode for Lower Potential Electrochemical Detection of Dopamine in its Sub-micromolar Level

Balamurugan Thirumalraj, Selvakumar Palanisamy, Shen Ming Chen, R. Sayee Kannan

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The electrochemical behaviour of dopamine (DA) at a cleaned and alumina polished glassy carbon electrode (GCE) was studied using cyclic voltammetry (CV). The CV studies revealed that alumina polished GCE (AGCE) shows an enhanced oxidation peak current response with 217mV negative potential shift towards DA than that of cleaned GCE. The differential pulse voltammetry result shows that the AGCE detects the DA in the linear concentration ranges from 0.15 to 25.25μmolL^-1. The limit of detection was calculated as 0.046μmolL^-1 with a sensitivity of 3.74μAμmolL^-1cm^-2 for the determination of DA. The fabricated AGCE shows a satisfactory selectivity, practicality along with appreciable repeatability and reproducibility.

Original language	British English
Pages (from-to)	425-430
Number of pages	6
Journal	Electroanalysis
Volume	28
Issue number	3
DOIs	https://doi.org/10.1002/elan.201500446
State	Published - 1 Mar 2016

Keywords

Alumina polishing
Differential pulse voltammetry
Dopamine
Glassy carbon electrode

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title = "Alumina Polished Glassy Carbon Electrode as a Simple Electrode for Lower Potential Electrochemical Detection of Dopamine in its Sub-micromolar Level",

abstract = "The electrochemical behaviour of dopamine (DA) at a cleaned and alumina polished glassy carbon electrode (GCE) was studied using cyclic voltammetry (CV). The CV studies revealed that alumina polished GCE (AGCE) shows an enhanced oxidation peak current response with 217mV negative potential shift towards DA than that of cleaned GCE. The differential pulse voltammetry result shows that the AGCE detects the DA in the linear concentration ranges from 0.15 to 25.25μmolL-1. The limit of detection was calculated as 0.046μmolL-1 with a sensitivity of 3.74μAμmolL-1cm-2 for the determination of DA. The fabricated AGCE shows a satisfactory selectivity, practicality along with appreciable repeatability and reproducibility.",

keywords = "Alumina polishing, Differential pulse voltammetry, Dopamine, Glassy carbon electrode",

author = "Balamurugan Thirumalraj and Selvakumar Palanisamy and Chen, {Shen Ming} and {Sayee Kannan}, R.",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

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doi = "10.1002/elan.201500446",

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journal = "Electroanalysis",

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TY - JOUR

T1 - Alumina Polished Glassy Carbon Electrode as a Simple Electrode for Lower Potential Electrochemical Detection of Dopamine in its Sub-micromolar Level

AU - Thirumalraj, Balamurugan

AU - Palanisamy, Selvakumar

AU - Chen, Shen Ming

AU - Sayee Kannan, R.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - The electrochemical behaviour of dopamine (DA) at a cleaned and alumina polished glassy carbon electrode (GCE) was studied using cyclic voltammetry (CV). The CV studies revealed that alumina polished GCE (AGCE) shows an enhanced oxidation peak current response with 217mV negative potential shift towards DA than that of cleaned GCE. The differential pulse voltammetry result shows that the AGCE detects the DA in the linear concentration ranges from 0.15 to 25.25μmolL-1. The limit of detection was calculated as 0.046μmolL-1 with a sensitivity of 3.74μAμmolL-1cm-2 for the determination of DA. The fabricated AGCE shows a satisfactory selectivity, practicality along with appreciable repeatability and reproducibility.

AB - The electrochemical behaviour of dopamine (DA) at a cleaned and alumina polished glassy carbon electrode (GCE) was studied using cyclic voltammetry (CV). The CV studies revealed that alumina polished GCE (AGCE) shows an enhanced oxidation peak current response with 217mV negative potential shift towards DA than that of cleaned GCE. The differential pulse voltammetry result shows that the AGCE detects the DA in the linear concentration ranges from 0.15 to 25.25μmolL-1. The limit of detection was calculated as 0.046μmolL-1 with a sensitivity of 3.74μAμmolL-1cm-2 for the determination of DA. The fabricated AGCE shows a satisfactory selectivity, practicality along with appreciable repeatability and reproducibility.

KW - Alumina polishing

KW - Differential pulse voltammetry

KW - Dopamine

KW - Glassy carbon electrode

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U2 - 10.1002/elan.201500446

DO - 10.1002/elan.201500446

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VL - 28

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JO - Electroanalysis

JF - Electroanalysis

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ER -

Alumina Polished Glassy Carbon Electrode as a Simple Electrode for Lower Potential Electrochemical Detection of Dopamine in its Sub-micromolar Level

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