Journal
ANALYTICAL METHODS
Volume 7, Issue 19, Pages 8220-8226Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ay02058a
Keywords
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Funding
- National Natural Science Foundation of China [21405095]
- Project of Shandong Province Higher Educational Science and Technology Program [J14LC09]
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A novel electrochemical sensor was fabricated for the determination of bisphenol A (BPA) based on a signal amplification strategy with polyacrylamide and multiwalled carbon nanotubes (PAM-MWCNTs). The modified electrode significantly enhanced the oxidation peak current and lowered the oxidation overpotential to improve the sensitivity. Several important parameters which can influence the performance of the sensor were studied and optimized. The sensor showed a fast and sensitive response for the quantitative determination of BPA under optimum conditions. It exhibited a good linear relationship range from 5.0 nmol L-1 to 20 mmol L-1 and the detection limit was 1.7 nmol L-1, (S/N-3). The sensor exhibited remarkable sensitivity (3.830 mu A (mu mol L-1)(-1)). Furthermore, the fabricated sensor showed an excellent result for the detection of BPA in milk samples.
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