title: Analysis of organochlorine pesticides in water by novel activated carbon fiber-solid phase microextraction coupled with gas chromatography-mass spectrometry.
abstract: This study describes a fast activated carbon fiber-solid phase microextraction (ACF-SPME) method for determining organochlorine pesticides (OCPs) in water. The pesticides in this study consist of Hexachlorobenzene (HCB) and alpha-, beta-, gamma-hexachlorocyclohexanes (HCHs). The optimal experimental procedures for the adsorption and desorption of four OCPs were evaluated. The linearity was obtained with a RSD of 20% for the OCPs studied over a range from 1.0 to 100 microg/L. The limits of detection at ng/L level were achieved with GC-MS under selected ion monitoring (SIM) acquisition mode. The proposed method was applied to the determination of OCPs concentration in tap water. The results have demonstrated the suitability of the ACF-SPME-GC-MS approach for the analysis of multi-residue OCPs in water. Compared to the commercial fiber, ACF has shown its advantages in solvent-resistance, thermal stability, and the cost. The results obtained in this study suggest that ACF is a promising choice in solid phase microextraction.
authors.affiliation: College of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China.
authors.forename: Tonghua
authors.initials: T
authors.lastname: Sun
authors.forename: Jinping
authors.initials: J
authors.lastname: Jia
authors.forename: Nenghu
authors.initials: N
authors.lastname: Fang
authors.forename: Yalin
authors.initials: Y
authors.lastname: Wang
authors.forename: Jiang
authors.initials: J
authors.lastname: Yu
mesh_terms: D000327:Adsorption; D002606:Charcoal; D005618:Fresh Water / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D006581:Hexachlorobenzene / Q000032:analysis; D001556:Hexachlorocyclohexane / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D002606:Charcoal; D006581:Hexachlorobenzene; D001556:Hexachlorocyclohexane