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Analytical and Bioanalytical Chemistry Research، جلد ۸، شماره ۳، صفحات ۲۶۱-۲۷۴
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عنوان انگلیسی Electrochemical Sensing of Folic Acid in Presence of Ascorbic acid Using Carbon Paste Nano Composite Modified Electrode
چکیده انگلیسی مقاله In the present work, combination of unique properties of two nano material compounds, MgO nano paricles (MgO NPs) and multi-wall carbon nanotubes (MWCNT), and electrocatalytic activity of an oxadiazole derivative, 3-(5-(pyridine-4-yl)-1,3,4-oxadiazole-2-ylthio)-4- methylcyclohexa-1,3-diene-1,2-diol; POM, was used to fabricate a sensitive electrode (POM-MgO NPs-MWCNT-CPE) for electrochemical determination of folic acid. The electrochemical treatment of folic acid was studied in phosphate buffer solution (0.1 M, pH 7) by means of common electrochemical techniques such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The sensitive fabricated electrode displayed good operating characteristics such as wide linear range and low detection limit for the determination of folic acid. Using the fabricated electrode, a wide linear dynamic range in concentration range 0.08-650.0 μM, and a limit of detection of 0.02 μM were found. Using the modified electrode, the two well distinguished peaks were recorded at 110.0 and 209 mV for ascorbic acid and folic acid, respectively. Reliability and accuracy of the introduced electrode were studied in pharmaceutical and biological samples.
کلیدواژه‌های انگلیسی مقاله Carbon paste electrode,Oxadiazole derivative,Multiwall carbon nanotubes,Folic acid,Ascorbic acid
نویسندگان مقاله Masoud Reza Shishehbore |
Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran

Shohreh Vafaee-Shahi |
Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran

Ali Sheibani |
Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran

Masoumeh Tabatabaee |
Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran

نشانی اینترنتی https://www.analchemres.org/article_130413_5db36718469650ce9417f4eefffbd70e.pdf
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