title: Determination of 17 kinds of banned organochlorine pesticides in water by activated carbon fiber-solid phase microextraction coupled with GC-MS.
abstract: Activated carbon fiber (ACF) as extraction fiber for solid-phase microextraction (SPME) and its application for the analysis of banned organochlorine pesticides (OCPs) were investigated. Firstly, ACF was activated by different concentration of zinc chloride, which indicated that ACF activated by 60% zinc chloride had a reasonable specific surface area, pore volume and pore distribution. Secondly, the parameters for the ACF-SPME procedure, the adsorption and desorption conditions, were also optimized when coupled with gas chromatography-mass spectrometry (GC-MS). Thirdly, the ACF-SPME was used to analyze 17 kinds of OCPs in water. The linearity of most pesticides was found to be between 0.2 and 50 microg/l with GC-MS under the selected ion monitoring (SIM) acquisition mode. The limits of detection (LOD) at the sub microg/l were obtained. The work demonstrated here shows that ACF is a promising alternative for the SPME procedure.
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
authors.forename: Tonghua
authors.initials: T
authors.lastname: Sun
authors.forename: Jinping
authors.initials: J
authors.lastname: Jia
authors.forename: Dengjie
authors.initials: D
authors.lastname: Zhong
authors.forename: Yalin
authors.initials: Y
authors.lastname: Wang
mesh_terms: D002244:Carbon / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry / Q000494:pharmacology; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D007477:Ions; D010573:Pesticide Residues / Q000032:analysis; D010575:Pesticides / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis; D017967:Zinc Compounds / Q000737:chemistry / Q000494:pharmacology
chemical_list: D002712:Chlorides; D006843:Hydrocarbons, Chlorinated; D007477:Ions; D010573:Pesticide Residues; D010575:Pesticides; D014874:Water Pollutants, Chemical; D017967:Zinc Compounds; D014867:Water; D002244:Carbon; C016837:zinc chloride