title: Screening test of stimulants in human urine utilizing headspace gas chromatography for field test.
abstract: An accurate and simple screening method of stimulants in human urine using headspace gas chromatography utilizing heat of dissolution of potassium carbonate was developed. A 4.9-g portion of potassium carbonate was put into the vial prior to sending to the field, and a 5-ml aliquot of urine, suspected of containing stimulants and internal standard components was pipetted. After the vial was sealed and shaken by hand, 1 ml of its headspace gas was taken by disposable syringe and injected into the gas chromatograph. A compact gas chromatograph device with flame ionization detector and fused silica capillary column was developed for this experiment. Detection limits of methamphetamine and amphetamine were 1.0 micrograms/ml and 1.5 micrograms/ml, respectively.
authors.affiliation: Forensic Science Laboratory, Osaka Prefectural Police Headquarters, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tsuchihashi
authors.forename: K
authors.initials: K
authors.lastname: Nakajima
authors.forename: M
authors.initials: M
authors.lastname: Nishikawa
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: Y
authors.initials: Y
authors.lastname: Oka
authors.forename: K
authors.initials: K
authors.lastname: Otsuki
mesh_terms: D000661:Amphetamine / Q000652:urine*; D002138:Calibration; D002254:Carbonates; D002849:Chromatography, Gas; D006801:Humans; D008694:Methamphetamine / Q000652:urine*; D011188:Potassium; D011237:Predictive Value of Tests; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D002254:Carbonates; D008694:Methamphetamine; C037593:potassium carbonate; D000661:Amphetamine; D011188:Potassium