title: Preparation of 4-butylaniline-bonded attapulgite for pre-concentration of bisphenol A in trace quantity.
abstract: Ring-opening reaction with synchronous hydrolysis was used to prepare 4-butylaniline-modified attapulgite (abbreviated as BA-ATP) for pre-concentration of bisphenol A (BPA) in trace quantity. The preparation was achieved under mild condition, and the material was characterized by Fourier transform infrared spectroscopy (FT-IR), elemental analysis, nuclear magnetic resonance (NMR) and scanning electron microscopy. BA-ATP was used in solid phase extraction (SPE), and SPE was performed in a neutral condition without regard to ionic strength. The results indicate that BA-ATP has high affinity to BPA with a maximum adsorption amount of 44mg g(-1), and the adsorption can be described by Langmuir isotherm model. The content of bisphenol A in water samples was analyzed by HPLC method with the pre-concentration using BA-ATP. The limit of detection (LOD) can be as low as 3.9ng mL(-1), and the average recoveries are in a range of 93-97% with relative standard deviation (RSD) of less than 2%.
authors.affiliation: Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
authors.forename: Ganghui
authors.initials: G
authors.lastname: Chu
authors.affiliation: Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
authors.forename: Wensheng
authors.initials: W
authors.lastname: Cai
authors.affiliation: Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China. Electronic address: xshao@nankai.edu.cn.
authors.forename: Xueguang
authors.initials: X
authors.lastname: Shao
mesh_terms: D000327:Adsorption; D000814:Aniline Compounds / Q000737:chemistry*; D001559:Benzhydryl Compounds / Q000032:analysis* / Q000737:chemistry; D017616:Magnesium Compounds / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008855:Microscopy, Electron, Scanning; D010636:Phenols / Q000032:analysis* / Q000737:chemistry; D017655:Silicon Compounds / Q000737:chemistry*; D052616:Solid Phase Extraction; D017550:Spectroscopy, Fourier Transform Infrared; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D000098826:Bisphenol A Compounds
chemical_list: D000814:Aniline Compounds; D001559:Benzhydryl Compounds; D017616:Magnesium Compounds; D010636:Phenols; D017655:Silicon Compounds; D014874:Water Pollutants, Chemical; C006780:bisphenol A; D000098826:Bisphenol A Compounds; C026325:attapulgite
keywords: 4-Butylaniline; Attapulgite; Bisphenol A; Pre-concentration; Ring-opening reaction; Synchronous hydrolysis