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Preparation and characterization of 3‐[(1 H ‐1,2,4‐triazole‐3‐ylimino)methyl]naphtalene‐2‐ol film at the platinum surface for selective voltammetric determination of dopamine in the presence of uric acid and ascorbic acid
Author(s) -
Tatli Feyza,
Uzun Demet,
Calam Tuğba Tabanlıgil,
Gündüzalp Ayla Balaban,
Hasdemir Erdoğan
Publication year - 2019
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6607
Subject(s) - ascorbic acid , platinum , detection limit , x ray photoelectron spectroscopy , chemistry , cyclic voltammetry , dielectric spectroscopy , analytical chemistry (journal) , electrochemistry , scanning electron microscope , nuclear chemistry , electrode , materials science , chromatography , organic chemistry , food science , composite material , catalysis , physics , nuclear magnetic resonance
A [(1 H ‐1,2,4‐triazole‐3‐ylimino)methyl]naphthalene‐2‐ol (TMN‐2‐ol) film modified platinum (Pt) electrode has been fabricated by the electrochemical oxidation in acetonitrile solution. The modified surface was characterized by electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM), and X‐ray photoelectron spectroscopy (XPS). The prepared Pt electrode can be used as a functional interface to sensitive and selective determination of dopamine (DA) in the presence of uric acid (UA) and ascorbic acid (AA) by square wave voltammetry (SWV) method. The limit of detection (LOD) and limit of quantification (LOQ) of DA were 9.25 × 10 −8 and 2.78 × 10 −7 M, respectively. Linear range of DA was found to be between 3.95 × 10 −7 and 4.19 × 10 −6 M.