NDLI: Electrochemical sensor of 4-aminobutyric acid based on molecularly imprinted electropolymer

Content Provider	Royal Society of Chemistry (RSC)
Author	Zheng, Xinyu Lin, Ruiyu Zhou, Xuechou Lin, Wenxiong Zhang, Lingling
Copyright Year	2012
Abstract	A simple and effective procedure based on a molecularly imprinted polymer (MIP) was developed for preparing a selective 4-aminobutyric acid (4-ABA) sensor. The sensitive layer was prepared by electropolymerization of o-phenylenediamine (o-PD) on a gold electrode in the presence of 4-ABA, which acts as a template. Cyclic voltammetry (CV), differential pulse voltammetry (DPV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) measurements were used to monitor the process of electropolymerization. The molecularly imprinted sensor was tested by CV as well as DPV to verify the changes of redox currents of hexacyanoferrate. The concentration of 4-ABA in the range of 0.2–20.0 μmol L−1 can be determined with a detection limit of 0.08 μmol L−1 (defined as S/N = 3) under the optimum conditions. The MIP sensor shows high selectivity, sensitivity and reproducibility. The results from sample analysis indicate that the MIP-4-ABA sensor can be used for quantitative analysis.
Starting Page	482
Ending Page	487
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	2
Journal	Analytical Methods
DOI	10.1039/c2ay05629a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Acid Nanoarchitectures for lithium-ion batteries Electrode Redox LSV Cyclic voltammetry Linear sweep voltammetry O-Phenylenediamine Molecularly imprinted polymer Electrochemistry Differential pulse voltammetry Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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