Journal
MICROCHIMICA ACTA
Volume 180, Issue 9-10, Pages 861-869Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-013-1001-z
Keywords
Molecular imprinting; Bisphenol A; Chitosan; Acetylene black; Voltammetric sensor
Categories
Funding
- National Natural Science Foundation of China [21105024]
- Education Department of Hunan Province [11CY002, 12C0536]
- Hunan Provincial Natural Science Foundation of China [11JJ9005]
- Key Laboratory of Functional Organometallic Materials of Ordinary University in Hunan Province [12 K125]
- Key Discipline Project of Hunan Province
- Research Award Fund for Outstanding Young Teachers of Hunan Province
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We report on a voltammetric sensor for bisphenol A (BPA) that is based on an acetylene-black paste electrode modified with a chitosan film molecularly imprinted for BPA. The sensor responds linearly to BPA in the 80 nM to 10 mu M concentration range, and the detection limit is 60 nM (at an S/N of 3). The use of a molecular imprint provides an efficient way for eliminating interferences from potentially interfering substances. The high sensitivity, selectivity and stability of the sensor demonstrate its practical application for the determination of BPA in plastic samples.
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