title: Automated sample clean-up and fraction of organochlorine pesticides in sediments using the SPE-GPC-VAP system.
abstract: This paper describes an automated sample clean-up and fraction method using the SPE-GPC-VAP system for the determination of organochlorine pesticides (OCPs) in sediments. The method is based on a simultaneous extraction/clean-up step to reduce analysis time and solvent consumption. The parameters of a solid-phase extraction procedure, a gel permeation chromatography procedure and an AccuVap procedure were optimized to obtain maximum recovery of the target analytes with minimum presence of matrix-interfering compounds. The detection limits ranged from 0.03 to 0.13 ng g(-1) and the recovery ranged from 50.05% to 104.39%. The relative standard deviation was lower than 19.34% when OCPs concentrations in sediments ranged from 1.25 to 125 ng g(-1).
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
authors.forename: Mei
authors.initials: M
authors.lastname: Han
authors.forename: Zhifen
authors.initials: Z
authors.lastname: Gan
authors.forename: Shuxuan
authors.initials: S
authors.lastname: Liang
authors.forename: Lihui
authors.initials: L
authors.lastname: An
authors.forename: Xingru
authors.initials: X
authors.lastname: Zhao
mesh_terms: D061006:Bays / Q000737:chemistry; D002681:China; D052918:Environmental Restoration and Remediation / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis / Q000737:chemistry*; D010575:Pesticides / Q000032:analysis / Q000737:chemistry*; D052616:Solid Phase Extraction; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical