title: Development of a single reagent polarisation fluoroimmunoassay for the detection of opiates in urine.
abstract: The design, development, and optimisation of a simple polarisation fluoroimmunoassay to detect the opiate group of drugs, in urine, is described. Urine (10 microL) is added to 1.5 mL of a single reagent, prepared by mixing ovine anti-opiate serum with fluorescein-labelled morphine. After incubation for 30 min at 30 degrees C, or 60 min at room temperature, fluorescence polarisation is measured. The assay can be used as a "stat" test or automated for large batch screening and detects the commonly abused opiates, heroin (through its metabolite morphine), codeine, and dihydrocodeine.
authors.affiliation: Department of Chemical Pathology, St. Bartholomew's Hospital, West Smithfield, London, U.K.
authors.forename: D L
authors.initials: DL
authors.lastname: Colbert
authors.forename: G
authors.initials: G
authors.lastname: Gallacher
authors.forename: A M
authors.initials: AM
authors.lastname: Sidki
authors.forename: R W
authors.initials: RW
authors.lastname: Mainwaring-Burton
mesh_terms: D000918:Antibody Specificity; D003429:Cross Reactions; D015200:Fluoroimmunoassay; D006801:Humans; D015394:Molecular Structure; D009294:Narcotics / Q000652:urine*
chemical_list: D009294:Narcotics