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Electrochemical Determination of Dopamine on a Glassy Carbon Electrode Modified by Using Nanostructure Ruthenium Oxide HexacyanoferrateRuthenium Hexacyanoferrate Thin Film
Joint Authors
Alinajafi-Najafabadi, Hossein Ali
Shervedani, Reza Karimi
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-17
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Application of mixed ruthenium oxide hexacyanoferrate/ruthenium hexacyanoferrate glassy carbon electrode for electrochemical determination of dopamine (DA) is described for the first time.
The overlapped voltammetric oxidation potentials of ascorbic acid (AA) and DA are separated and shifted to more facile direction, +170 and +320 mV versus Ag/AgCl, respectively.
Voltammetric response of the electrode toward the DA showed a dynamic calibration curve with two linear parts, from 0.50 to 10.00 μM and 25.00 to 550.00 μM DA, and a detection limit of 0.195 μM.
The sensitivity (0.2917 μA/μM) and detection limit (0.195×10−7 μMDA) of this electrode are 21 times higher and 11.5 times lower than those found in our previous paper.
The sensor response of 9.95 μMDA was not affected by 5.0 mM of glucose, 4.5 mM of fructose, 0.58 mM of sucrose, 0.28 mM of cystine, 0.25 mM of ascorbic acid, 79.60 μM of cysteine, and 49.70 μM of uric acid and urea.
The fabricated sensor was successfully tested for determination of DA in injection medicine and human blood plasma samples.
American Psychological Association (APA)
Shervedani, Reza Karimi& Alinajafi-Najafabadi, Hossein Ali. 2011. Electrochemical Determination of Dopamine on a Glassy Carbon Electrode Modified by Using Nanostructure Ruthenium Oxide HexacyanoferrateRuthenium Hexacyanoferrate Thin Film. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-484263
Modern Language Association (MLA)
Shervedani, Reza Karimi& Alinajafi-Najafabadi, Hossein Ali. Electrochemical Determination of Dopamine on a Glassy Carbon Electrode Modified by Using Nanostructure Ruthenium Oxide HexacyanoferrateRuthenium Hexacyanoferrate Thin Film. International Journal of Electrochemistry No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-484263
American Medical Association (AMA)
Shervedani, Reza Karimi& Alinajafi-Najafabadi, Hossein Ali. Electrochemical Determination of Dopamine on a Glassy Carbon Electrode Modified by Using Nanostructure Ruthenium Oxide HexacyanoferrateRuthenium Hexacyanoferrate Thin Film. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-484263
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-484263