Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
580661 | Journal of Hazardous Materials | 2010 | 8 Pages |
Abstract
Bisphenol A (BPA) is an environmental pollutant to disrupt endocrine system or cause cancer, thus the detection of BPA is very important. Herein, an amperometric sensor was fabricated based on immobilized CoTe quantum dots (CoTe QDs) and PAMAM dendrimer (PAMAM) onto glassy carbon electrode (GCE) surface. The cyclic voltammogram of BPA on the sensor exhibited a well-defined anodic peak at 0.490Â V in 0.1Â M pH 8.0 PBS. The determination conditions were optimized and the kinetic parameters were calculated. The linear range was 1.3Â ÃÂ 10â8 to 9.89Â ÃÂ 10â6Â M with the correlation coefficient of 0.9999. The limit of detection was estimated to be 1Â ÃÂ 10â9Â M. The current reached the steady-state current within about 5Â s. Furthermore, the fabricated sensor was successfully applied to determine BPA in real water samples.
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Authors
Huanshun Yin, Yunlei Zhou, Shiyun Ai, Quanpeng Chen, Xiangbin Zhu, Xianggang Liu, Lusheng Zhu,