High-selective and sensitive voltammetric sensor for butylated hydroxyanisole based on AuNPs-PVP-graphene nanocomposites

Ling Wang; Ran Yang; Huan Wang; Jianjun Li; Lingbo Qu; Peter de B Harrington

doi:10.1016/j.talanta.2015.01.016

High-selective and sensitive voltammetric sensor for butylated hydroxyanisole based on AuNPs-PVP-graphene nanocomposites

Talanta. 2015 Jun 1:138:169-175. doi: 10.1016/j.talanta.2015.01.016. Epub 2015 Jan 21.

Authors

Ling Wang¹, Ran Yang², Huan Wang³, Jianjun Li³, Lingbo Qu⁴, Peter de B Harrington⁵

Affiliations

¹ College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China; Department of Chemistry, Zhengzhou Normal University, Zhengzhou 450001, PR China.
² College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China. Electronic address: yangran@zzu.edu.cn.
³ College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China.
⁴ College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China; School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China. Electronic address: qulingbo@zzu.edu.cn.
⁵ Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry, OHIO University, Athens, OH 45701-2979, USA.

PMID: 25863387
DOI: 10.1016/j.talanta.2015.01.016

Abstract

Gold nanoparticles (AuNPs) and reduced graphene oxide (graphene) composites were synthesized via a simple one-pot approach in the presence of polyvinylpyrrolidone (PVP). Further, the Au-PVP-graphene nanocomposite was used as a new sensing material for the electrochemical detection of butylated hydroxyanisole (BHA). Because of the greatly enlarged surface area, the enhanced electron transfer rate, and a stronger enrichment of BHA, the sensor based on Au-PVP-graphene modified glassy carbon electrode (GCE) displayed highly sensitive electrochemical responses to BHA. Applying linear sweep voltammetry, a good linear relationship of the oxidation peak current with respect to concentrations of BHA across the range of 0.2-100.0 µM and a detection limit of 0.04 µM was achieved. The practical analytical performance of the Au-PVP-graphene/GCE was examined by evaluating detection of BHA in soybean oil and the flour samples. Satisfactory results revealed that this work offered a new way for the sensitive and simple determination of BHA in complex samples.

Keywords: Au–PVP–graphene nanocomposites; Butylated hydroxyanisole (BHA); Electrochemical sensor; High-sensitivity.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biosensing Techniques / methods*
Butylated Hydroxyanisole / analysis*
Electrochemical Techniques / methods
Electrodes
Gold / chemistry*
Graphite / chemistry*
Limit of Detection
Metal Nanoparticles*
Nanocomposites / chemistry*
Oxidation-Reduction
Povidone / chemistry*
Sensitivity and Specificity

Substances

Butylated Hydroxyanisole
Gold
Graphite
Povidone