期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 826, 期 -, 页码 10-15出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.08.019
关键词
Tetrabromobisphenol A; Molecularly imprinted film; Electropolymerized dopamine; Electrochemical sensor
资金
- National Basic Research Program of China (973 Program) [2015CB352100]
- National Natural Science Foundation of China [21775050]
- Hubei Provincial Natural Science Fund for Distinguished Young Scholars [2016CFA039]
- Program for Science & Technology Innovation Talents in University of Henan Province [16HASTIT003]
This work reported the simple and direct detection of 3,3',5,5'-tetrabromobisphenol A (TBBPA) by a poly-dopamine imprinted electrochemical sensor. The imprinted film was directly prepared by electropolymerization of dopamine on a glassy carbon electrode in the presence of template molecule, and then characterized using electrochemical probe of potassium ferricyanide, scanning electron microscopy and atomic force microscopy. It was found that the obtained sensing film greatly enhanced the oxidation signals of TBBPA due to strong accumulation ability. The influences of electropolymerization conditions (e.g. template concentration, scan cycles and scan rates), accumulation time and pH value were studied. The developed sensing platform exhibited good reproducibility, excellent sensitivity and selectivity, offering a low detection limit (0.27 nM) and a linear range from 1 to 50 nM. It was applied for TBBPA detection in plastic a-waste samples, and the results were consistent with those obtained by high-performance liquid chromatography.
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