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Characterization of O + Ion‐implanted Glassy Carbon Using the Superconducting Electron Cyclotron Resonance Ion Source and Selective Dopamine Detection
Author(s) -
Park Jin Yong,
Lee DongWook,
Hong Jonggi,
Kim Seong Jun,
Ok JungWoo,
Yoon JangHee,
Won MiSook
Publication year - 2021
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.202100078
Subject(s) - analytical chemistry (journal) , detection limit , ion , materials science , raman spectroscopy , electron cyclotron resonance , x ray photoelectron spectroscopy , electrochemistry , glassy carbon , electrode , chemistry , nuclear magnetic resonance , chromatography , cyclic voltammetry , physics , organic chemistry , optics
Abstract The O and N gas ions (O 3+ , O + , N 2+ , and N 4+ ) were implanted on the glassy carbon surface employing the electron cyclotron resonance ion source, which were characterized using electrochemical and surface analysis methods. The modified electrode was examined for the catalytic oxidation of bioorganic molecules including dopamine, where the O + ion implanted GC revealed the best catalytic performance. The XPS and Raman results represented that the ion implantation made enrichment in graphite nanocrystalline structure with edge plane, showing the enhanced electrochemical activity. It showed excellent performance for dopamine detection without significant interferences between 50.0 nM and 400.0 μM with the detection limit of 10.0±2.5 nM (95 % confidence level). The reliability of proposed electrode was evaluated by the real urine sample analysis.