A sensitive nicotine sensor based on molecularly imprinted electropolymer of o-aminophenol |
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Authors: | Zhaoyang Wu Xiaolei Zhang Yunhui Yang Guoli Shen Ruqin Yu |
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Institution: | (1) College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China |
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Abstract: | A sensitive nicotine sensor based on a molecularly imprinted electropolymer of o-aminophenol is proposed and its configuration
and performance are studied in detail. On the condition of weak acidity, the sensitive layer was prepared by electropolymerization
of o-aminophenol on a gold electrode in the presence of the template (nicotine). The sensor exhibits good selectivity and
sensitivity to nicotine. The determination limit is 2.0×10−7 mol/L and a linear relationship between the current and concentration is found in the range of 4.0×10−7 ∼ 3.3 ×10−5 mol/L. The sensor has also been applied to the analysis of nicotine in tobacco samples with recovery rates ranging from 99.0%
to 102%.
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Translated from Journal of Hunan university (Nature Science), 2005, 32(3) (in Chinese) |
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Keywords: | molecularly imprinting electropolymerization nicotine poly (o-aminophenol) |
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