title: Octadecylsilane/Nylon-6 composite as a thin-film microextraction sorbent for the determination of bisphenol A in water samples.
abstract: We report on the fabrication of a thin-film composite for the extraction of bisphenol A from aqueous solutions. Nylon-6, C18 particles, and polyethylene glycol were used to prepare the thin film sorbent. Bisphenol A was used as a model compound to evaluate the extraction efficiency of the sorbent. High-performance liquid chromatography with UV detection was used for the analysis. The extraction yield of the sorbent was compared with other thin films fabricated using different sorbents including nanoclay, LiChrolut EN, and multiwalled carbon nanotubes. Experimental parameters affecting the extraction performance (extraction time, desorption condition, sample stirring, and ionic strength of the sample solution) were investigated. The detection limit and the dynamic range of the method were 0.05 and 0.15-50 μg/L, respectively. The relative standard deviation of the method at two concentration levels (0.5 and 20 μg/L) was less than 7.2%. Finally, a polycarbonate baby bottle, river water, and wastewater samples were analyzed by the method.
authors.affiliation: Department of Chemistry, Isfahan University of Technology, Isfahan, Iran. Saraji@cc.iut.ac.ir, Msaraji@ymail.com.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Saraji
authors.affiliation: Department of Chemistry, Isfahan University of Technology, Isfahan, Iran.
authors.forename: Arnavaz Keikavousi
authors.initials: AK
authors.lastname: Behbahan
mesh_terms: D000327:Adsorption; D001559:Benzhydryl Compounds / Q000032:analysis* / Q000302:isolation & purification*; D002209:Caprolactam / Q000031:analogs & derivatives* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D057230:Limit of Detection; D010636:Phenols / Q000032:analysis* / Q000302:isolation & purification*; D011108:Polymers / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry*; D052617:Solid Phase Microextraction / Q000295:instrumentation / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000302:isolation & purification*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D002209:Caprolactam; D010636:Phenols; D011108:Polymers; D012821:Silanes; D014874:Water Pollutants, Chemical; C024779:octadecylsilane; C009916:nylon 6; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Bisphenol A; Nylon; Octadecylsilane; Thin-film microextraction; Water samples