Electrocatalytic and Simultaneous Determination of Ascorbic Acid, Nicotinamide Adenine Dinucleotide and Folic Acid at Ruthenium(II) Complex‐ZnO/CNTs Nanocomposite Modified Carbon Paste Electrode. Issue 5 (15th April 2014)

• Record Type: Journal Article
• Authors: Karimi‐Maleh, Hassan; Tahernejad‐Javazmi, Fahimeh; Daryanavard, Marzieh; Hadadzadeh, Hassan; Ensafi, Ali A.; Abbasghorbani, Maryam
• Is Part Of: Electroanalysis. Volume 26:Issue 5(2014:May)
• Page Start: 962
• Page End: 970
• Publication Date: 2014-04-15
• Subjects: Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201400013
• Languages: English
• ISSNs: 1040-0397

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>This paper describes the development a novel ruthenium(II) complex‐ZnO/CNTs modified carbon paste electrode (Ru(II)/ZnO/CNTs/CPE) for the electrocatalytic determination of ascorbic acid (AA). The objective of this novel electrode modification was to seek new electrochemical performances for the detection of AA, nicotinamide adenine dinucleotide (NADH) and folic acid (FA). The peak potentials recorded were 170, 500 and 830 mV vs. Ag/AgCl/KCl_sat for AA, NADH and FA, respectively. The peak currents were linearly dependent on AA, NADH and FA concentrations using square wave voltammetry (SWV) method at the ranges of 0.008–251, 1.0–650, and 3.0–700 µmol L⁻¹, with detection limits of 0.005, 0.5, and 1.0 µmol L⁻¹, respectively.</p> </abstract>