title: Facile electrochemical determination of tetrabromobisphenol A based on modified glassy carbon electrode.
abstract: In this study, surface-functionalized nitrogen-doped graphene was prepared with 1, 3, 6, 8-pyrenetetrasulfonic acid tetrasodium salt in a simple way. The characteristics of the material were demonstrated by UV-vis absorption spectra, X-ray photoelectron spectroscopy, and electrochemical experiments. Then, the glassy carbon electrode was modified by the functionalized nitrogen-doped graphene and hexadecyltrimethylammonium bromide for tetrabromobisphenol A (TBBPA) determination. The oxidation current response of TBBPA was enhanced at the modified electrode and the mechanism was investigated. Upon the optimization of assay parameters, including pH value, accumulation potential and time, the oxidation current was linearly related to the concentration of TBBPA in the range of 0.01-1μM with a detection limit of 9nM. Moreover, the modified electrode was applied to detect TBBPA in water samples with simple, low cost, and high efficiency.
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zhao
authors.affiliation: Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, #1277 jiefang Road, Wuhan, Hubei 430022, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Guangxia
authors.initials: G
authors.lastname: Yu
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Weixiang
authors.initials: W
authors.lastname: Wu
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Xiaoyun
authors.initials: X
authors.lastname: Wei
authors.affiliation: Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China. Electronic address: qi_weiliao@126.com.
authors.forename: Qing
authors.initials: Q
authors.lastname: Lu
keywords: 1, 3, 6, 8-pyrenetetrasulfonic acid tetrasodium salt; Electrochemical detection; Nitrogen-doped graphene; Tetrabromobisphenol A