Document Detail

An amperometric sensor for the determination of benzophenone in food packaging materials based on the electropolymerized molecularly imprinted poly-o-phenylenediamine film.
MedLine Citation:
PMID:  22967627     Owner:  NLM     Status:  In-Data-Review    
Benzophenone is one of the most commonly used photoinitiators of UV-cured inks on food packaging materials and can migrate into foodstuffs. In this study, an amperometric benzophenone sensor based on molecularly imprinted polymer (MIP) was successfully constructed for the first time. The sensor was prepared by electropolymerizing o-phenylenediamine (o-PD) on a glassy carbon electrode (GCE) in the presence of template benzophenone, and then removing the template by immersing the poly-o-phenylenediamine film-modified GCE in ethanol. The molecularly imprinted sensor was tested in the presence or absence of benzophenone by cyclic voltammetry and linear sweep voltammetry to verify the changes in the redox peak currents of potassium ferricyanide. The sensor responded sensitively to benzophenone over a linear range of 0.05-5μM with a detection limit of 10nM. The imprinted sensor showed high recognition ability for benzophenone and was successfully applied to the determination of benzophenone in food packaging material samples.
Haidong Li; Huaimin Guan; Hong Dai; Yuejin Tong; Xianen Zhao; Wenjing Qi; Saadat Majeed; Guobao Xu
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Publication Detail:
Type:  Journal Article     Date:  2012-07-22
Journal Detail:
Title:  Talanta     Volume:  99     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  811-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
College of Chemistry and Chemical Engineering, Fujian Normal University, Fuzhou 350007, China.
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