Simultaneous determination of methamphetamine and its metabolite, amphetamine, in urine using a high performance liquid chromatography column-switching method. 2007

Mitsuru Kumihashi, and Kiyoshi Ameno, and Takayuki Shibayama, and Keisuke Suga, and Hiroshi Miyauchi, and Mostofa Jamal, and Weihuan Wang, and Ikuo Uekita, and Iwao Ijiri
Department of Forensic Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki, Kita, Kagawa 761-0793, Japan. kumihash@mxi.netwave.or.jp

We describe here a simple, precise, and highly sensitive method for the simultaneous determination of methamphetamine (MA) and amphetamine (AM) in urine using a high performance liquid chromatography (HPLC) column-switching method. A PK-2A (Shodex) column was used for extraction and deproteinization, and a CAPCELL PAK SCX semi-micro, polymer-coated cation-exchange column was employed for separation. The urine sample was mixed with an equal volume of borate buffer (0.1M, pH 9.4), and then 100 microl of the mixture was injected into the HPLC column. The column was switched for 6 min, and then 10 min later detection was performed at 210 nm. Recovery yields of the MA and AM spiked in the urine were 93.0-100.4% with a coefficient of variation of less than 1%. The calibration curves of MA and AM were in the range of 0.1-10 microg/ml with good linearity (r(2)=0.999), with the limit of qualification being 0.005 microg/ml. This method of using HPLC with column-switching can be used for both qualification and quantification of MA and its metabolite, AM, in urine, especially in forensic cases.

UI MeSH Term Description Entries
D008694 Methamphetamine A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed. Deoxyephedrine,Desoxyephedrine,Desoxyn,Madrine,Metamfetamine,Methamphetamine Hydrochloride,Methylamphetamine,N-Methylamphetamine,Hydrochloride, Methamphetamine,N Methylamphetamine
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000661 Amphetamine A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE. Desoxynorephedrin,Levoamphetamine,Phenopromin,l-Amphetamine,Amfetamine,Amphetamine Sulfate,Amphetamine Sulfate (2:1),Centramina,Fenamine,Mydrial,Phenamine,Thyramine,levo-Amphetamine,Sulfate, Amphetamine,l Amphetamine,levo Amphetamine
D013056 Spectrophotometry, Ultraviolet Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Ultraviolet Spectrophotometry
D015813 Substance Abuse Detection Detection of drugs that have been abused, overused, or misused, including legal and illegal drugs. Urine screening is the usual method of detection. Drug Abuse Testing,Illicit Drug Testing,Street Drug Testing,Substance Abuse Testing,Drug Abuse Detection,Drug Abuse Screening,Illicit Drug Detection,Street Drug Detection,Detection, Drug Abuse,Detection, Illicit Drug,Detection, Street Drug,Detection, Substance Abuse,Detections, Drug Abuse,Detections, Illicit Drug,Detections, Street Drug,Detections, Substance Abuse,Drug Abuse Detections,Drug Abuse Screenings,Drug Abuse Testings,Drug Testing, Illicit,Drug Testings, Illicit,Illicit Drug Detections,Illicit Drug Testings,Screening, Drug Abuse,Screenings, Drug Abuse,Street Drug Detections,Street Drug Testings,Substance Abuse Detections,Substance Abuse Testings,Testing, Drug Abuse,Testing, Illicit Drug,Testing, Street Drug,Testing, Substance Abuse,Testings, Drug Abuse,Testings, Illicit Drug,Testings, Street Drug,Testings, Substance Abuse
D019969 Amphetamine-Related Disorders Disorders related or resulting from use of amphetamines. Amphetamine Abuse,Amphetamine Addiction,Amphetamine Dependence,Abuse, Amphetamine,Addiction, Amphetamine,Amphetamine Related Disorders,Dependence, Amphetamine,Disorder, Amphetamine-Related,Disorders, Amphetamine-Related

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