title: Solid phase extraction and GC-MS techniques for the confirmation of chlorpyrifos contamination of surface water supplies.
authors.affiliation: Saskatchewan Health, Laboratory and Disease Control Services Branch, 3211 Albert Street, Regina, Saskatchewan, S4S 5W6 Canada.
authors.forename: T S
authors.initials: TS
authors.lastname: Thompson
authors.forename: R G
authors.initials: RG
authors.lastname: Treble
mesh_terms: D000327:Adsorption; D002170:Canada; D004390:Chlorpyrifos / Q000032:analysis*; D005618:Fresh Water / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis; D011786:Quality Control; D012015:Reference Standards; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis* / Q000592:standards
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D004390:Chlorpyrifos