Title of article
Fabrication of TiO2 Nanoparticles Carbon Paste Electrode Bulk-Modified with Novel Hydroquinone for Determination of Ascorbic Acid
Author/Authors
Mazloum-Ardakani ، Mohammad نويسنده Department of Chemistry, Faculty of Science, Yazd University, Yazd, I.R. Iran , , Rajabi، Hossein نويسنده , , BEITOLLAHI، HADI نويسنده , , Mirjalili، Bi Bi Fatemah نويسنده Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I R Iran , , Akbari، Ali نويسنده Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I R Iran ,
Issue Information
فصلنامه با شماره پیاپی سال 2010
Pages
11
From page
41
To page
51
Abstract
A sensitive and selective electrochemical method for the determination of
ascorbic acid (AA) was developed using a modified TiO2 nanoparticles carbon paste
electrode. Cyclic voltammetry was used to investigate the redox properties of this
modified electrode at various solution pH values and at various scan rates. This
modified carbon paste electrode shows excellent electrocatalytic activity toward the
oxidation of AA in a phosphate buffer solution (pH 8.0). The linear range of 0.3 to 20.0
?M and a detection limit of 1.43 × 10-7 M were observed in pH 8.0 phosphate buffer
solution. Also, the modified electrode was employed for the determination of AA in the
real samples such as AA ampoule using standard addition method.
Journal title
Analytical and Bioanalytical Electrochemistry
Serial Year
2010
Journal title
Analytical and Bioanalytical Electrochemistry
Record number
1025631
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