title: Evaluation of activated carbon fiber filter for sampling of organochlorine pesticides in environmental water samples.
abstract: A simple method for quantitative analyses of organic chlorine pesticides (OCPs) in environmental water samples such as rainwater, river water and seawater using activated carbon fiber filters (ACFF) is described. ACFF was used as adsorbent to collect the chemicals in water samples. The collection of OCPs was completed almost for one day by stirring the mixture of the sample and the ACFF chips at room temperature. The adsorbed OCPs on the ACFF could be extracted easily with toluene-ethanol (4:1) mixed solvent. The purified extract by a florisil column chromatograph was followed by the analysis using high-resolution gas chromatograph/high-resolution mass spectrometer. Recoveries of OCPs spiked to actual samples such as rainwater, river water and seawater samples were approximately more than 80%, and the coefficients of variations were within 10%. This method was applied to the actual samples and was confirmed to be applicable for monitoring sub-ng/l level OCPs in environmental water samples.
authors.affiliation: Niigata Prefectural Institute of Public Health and Environmental Sciences, 314-1 Sowa, Niigata 950-2144, Japan. h.mura@d5.dion.ne.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Murayama
authors.forename: Noboru
authors.initials: N
authors.lastname: Moriyama
authors.forename: Hideko
authors.initials: H
authors.lastname: Mitobe
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Mukai
authors.forename: Yuuya
authors.initials: Y
authors.lastname: Takase
authors.forename: Ken ichi
authors.initials: Ki
authors.lastname: Shimizu
authors.forename: Yoshie
authors.initials: Y
authors.lastname: Kitayama
mesh_terms: D002606:Charcoal / Q000737:chemistry*; D002627:Chemistry, Physical / Q000379:methods; D002845:Chromatography / Q000379:methods; D005069:Evaluation Studies as Topic; D005374:Filtration / Q000295:instrumentation / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides / Q000032:analysis*; D017633:Magnesium Silicates / Q000737:chemistry; D015203:Reproducibility of Results; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D007306:Insecticides; D017633:Magnesium Silicates; D014874:Water Pollutants, Chemical; C005013:Florisil; D002606:Charcoal