title: [Determination of 47 organophosphorus pesticide residues in drinking water by membrane extraction-gas chromatography-PFPD].
abstract: OBJECTIVE
  To establish a method for the rapid determination of organophosphorus pesticide residues in drinking water by membrane extraction-gas chromatography.
  
  
  METHODS
  The pesticides were extracted from 1000 ml water sample with the activation of the C18 solid disk membrane. Then the extract was eluted by ethyl acetate, dehydrated by anhydrous sodium sulfate, nitrogen at least in 1 ml, set the volume to 1 ml. The volume was 2 microl for injection by gas chromatography.
  
  
  RESULTS
  The spiked recoveries were between 81.8%-122.8%, the RSD were 2.67%-24%, the detection limits of different organophosphorus pesticides were 0.006-0.35 microg/L and the LLOQ were 0.022-1.2 microg/L.
  
  
  CONCLUSIONS
  The method is simple, rapid, sensitive, repeatable, reliable and suitable for determination of trace organophosphorus pesticide in water.
authors.affiliation: Chengdu Center for Disease Control and Prevention, Chengdu 610041, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yang
authors.forename: Ling
authors.initials: L
authors.lastname: Gao
authors.forename: Hao
authors.initials: H
authors.lastname: Sun
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Luo
authors.forename: Dan
authors.initials: D
authors.lastname: Lu
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D060766:Drinking Water / Q000032:analysis*; D005410:Flame Ionization / Q000379:methods; D009943:Organophosphorus Compounds / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010783:Photometry / Q000379:methods; D052616:Solid Phase Extraction / Q000379:methods; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D060766:Drinking Water; D009943:Organophosphorus Compounds; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical