title: Determination of nicotine in tobacco products based on mussel-inspired reduced graphene oxide-supported gold nanoparticles.
abstract: Polydopamine functionalized reduced graphene oxide-gold nanoparticle (PDA-RGO/Au) nanocomposites were successfully prepared by a simple and mild procedure. The PDA-RGO/Au nanocomposite is successfully formed in an aqueous buffer solution (pH 8.5) without using any reducing agent. FTIR confirmed the successful coating of PDA and informed the reduction of the surface functional groups of GO. The formation of reduced GO and Au NPs was further evidenced by UV-Vis and X-ray diffraction spectroscopy. This method is environmentally friendly and highly beneficial for the mass production of graphene-noble metal based nanocomposite. The as prepared PDA-RGO/Au nanocomposite could greatly enhance the electrochemical oxidation of nicotine. We fabricated an electrochemical nicotine sensor based on the prepared PDA-RGO/Au nanocomposite. The proposed nicotine sensor showed a wide detection range from 0.05 to 500 μM with a low detection limit of 0.015 μM. Moreover, the proposed nicotine sensor was also successfully applied for determination nicotine content in tobacco products.
authors.affiliation: College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan 450000, China.
authors.forename: Yanqiu
authors.initials: Y
authors.lastname: Jing
authors.affiliation: College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan 450000, China.
authors.forename: Xiuxiu
authors.initials: X
authors.lastname: Yuan
authors.affiliation: Science and Technology Department of Jiangxi of China National Tobacco Corporation, Nanchang, Jiangxi, 330000, China.
authors.forename: Qiu
authors.initials: Q
authors.lastname: Yuan
authors.affiliation: Research institute of Jiangxi of China National Tobacco Corporation, Nanchang, Jiangxi, 330000, China.
authors.forename: Kuanxin
authors.initials: K
authors.lastname: He
authors.affiliation: Zhengzhou Branch of Henan Tobacco Corporation, Zhengzhou, Henan, 450000, China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Tobacco Industry Technology Research and Development Center, Zhengzhou, Henan, 450000, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.affiliation: Tobacco Industry Technology Research and Development Center, Zhengzhou, Henan, 450000, China.
authors.forename: Huaiqi
authors.initials: H
authors.lastname: Li
authors.affiliation: Zhengzhou Branch of Henan Tobacco Corporation, Zhengzhou, Henan, 450000, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: Quality Management Section of Hainan Hongta Cigarette CO., LTD, Haikou, Hainan, 570100, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhan
authors.affiliation: Zhengzhou Branch of Henan Tobacco Corporation, Zhengzhou, Henan, 450000, China.
authors.forename: Guangliang
authors.initials: G
authors.lastname: Li
mesh_terms: D000818:Animals; D015374:Biosensing Techniques / Q000379:methods; D049872:Bivalvia / Q000502:physiology*; D002448:Cell Adhesion; D006046:Gold / Q000737:chemistry; D006108:Graphite / Q000737:chemistry; D007211:Indoles / Q000737:chemistry; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry; D009538:Nicotine / Q000737:chemistry*; D010084:Oxidation-Reduction; D011108:Polymers / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D062789:Tobacco Products / Q000032:analysis*; D014867:Water
chemical_list: D007211:Indoles; D011108:Polymers; C568283:polydopamine; D014867:Water; D009538:Nicotine; D006046:Gold; D006108:Graphite