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Electrocatalytic and Simultaneous Determination of Ascorbic Acid, Nicotinamide Adenine Dinucleotide and Folic Acid at Ruthenium(II) Complex‐ZnO/CNTs Nanocomposite Modified Carbon Paste Electrode
Author(s) -
KarimiMaleh Hassan,
TahernejadJavazmi Fahimeh,
Daryanavard Marzieh,
Hadadzadeh Hassan,
Ensafi Ali A.,
Abbasghorbani Maryam
Publication year - 2014
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400013
Subject(s) - ascorbic acid , ruthenium , electrode , nanocomposite , amperometry , electrochemistry , nicotinamide adenine dinucleotide , nuclear chemistry , electrocatalyst , carbon paste electrode , glassy carbon , chemistry , inorganic chemistry , folic acid , cyclic voltammetry , chemically modified electrode , voltammetry , materials science , organic chemistry , working electrode , nad+ kinase , nanotechnology , catalysis , enzyme , food science , medicine
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.