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Facile Preparation of Ionic Liquid‐coated Copper Nanowire‐modified Carbon Paste Electrode for Electrochemical Detection of Etilefrine Drug
Author(s) -
Venkateswarlu Sada,
Venu Manthrapudi,
Reddy Yenegu Veera Manohara,
Sravani Bathinapatla,
Mallikarjuna K.,
Yoon Minyoung,
Madhavi G.
Publication year - 2019
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.11734
Subject(s) - detection limit , carbon paste electrode , materials science , electrode , ionic liquid , electrochemistry , chemical engineering , surface modification , fourier transform infrared spectroscopy , nuclear chemistry , chemistry , chromatography , cyclic voltammetry , organic chemistry , catalysis , engineering
A carbon paste electrode (CPE)/Cu nanowire (Cu NW)/poly(1‐ethyl‐3‐methylimidazolium methyl sulfate) based sensor was successfully fabricated by the electro‐polymerization of 1‐ethyl‐3‐methylimidazolium methyl sulfate (EMIMS) onto the surface of Cu nanowires‐modified carbon paste electrode. The morphology and chemical nature of Cu NWs were characterized by FTIR, FE‐SEM, TEM, XRD techniques. The CPE/CuNWs/poly(EMIMS) showed an electrocatalytic activity toward the determination of etilefrine hydrochloride (ET‐HCl) in the 0.11 M buffer solution of phosphate at pH 7.0. The CPE/CuNWs/poly(EMIMS) showed an excellent limit of detection (LOD) 2.3 μM over the linear dynamic range of 0.1 to 1.3 μM. The prepared CPE/CuNWs/poly(EMIMS) has exhibited high stability, good sensitivity, and low detection limit for the determination of ET‐HCl. The validity of this advanced method was checked by applying in the blood plasma samples, with satisfactory results. This novel CPE/CuNWs/poly(EMIMS) can be an attractive material for the applications in biomedical and sensor fields.