title: Dispersive liquid-liquid microextraction combined with high-performance liquid chromatography-UV detection as a very simple, rapid and sensitive method for the determination of bisphenol A in water samples.
abstract: Dispersive liquid-liquid microextraction (DLLME) coupled with high-performance liquid chromatography (HPLC)-UV detection was applied for the extraction and determination of bisphenol A (BPA) in water samples. An appropriate mixture of acetone (disperser solvent) and chloroform (extraction solvent) was injected rapidly into a water sample containing BPA. After extraction, sedimented phase was analyzed by HPLC-UV. Under the optimum conditions (extractant solvent: 142 microL of chloroform, disperser solvent: 2.0 mL of acetone, and without salt addition), the calibration graph was linear in the range of 0.5-100 microgL(-1) with the detection limit of 0.07 microgL(-1) for BPA. The relative standard deviation (RSD, n=5) for the extraction and determination of 100 microgL(-1) of BPA in the aqueous samples was 6.0%. The results showed that DLLME is a very simple, rapid, sensitive and efficient analytical method for the determination of trace amount of BPA in water samples and suitable results were obtained.
authors.affiliation: Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Rezaee
authors.forename: Yadollah
authors.initials: Y
authors.lastname: Yamini
authors.forename: Shahab
authors.initials: S
authors.lastname: Shariati
authors.forename: Ali
authors.initials: A
authors.lastname: Esrafili
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Shamsipur
mesh_terms: D000096:Acetone / Q000737:chemistry; D001559:Benzhydryl Compounds; D005591:Chemical Fractionation / Q000379:methods*; D002725:Chloroform / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003627:Data Interpretation, Statistical; D005618:Fresh Water / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D012680:Sensitivity and Specificity; D012965:Sodium Chloride / Q000737:chemistry; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D000098826:Bisphenol A Compounds
chemical_list: D000096:Acetone; D001559:Benzhydryl Compounds; D002725:Chloroform; D010636:Phenols; D012965:Sodium Chloride; D014867:Water; C006780:bisphenol A; D000098826:Bisphenol A Compounds