title: [Studies on analytical method for 10 drugs of abuse in urine using HPLC].
abstract: A systematic determination method for 10 drugs of abuse, morphine, codeine, 6-monoacetylmorphine, heroin, levorphanol, pethidine, ethylmorphine, anadol, pentazocine and ethamivan, using high performance liquid chromatography is described. Separation of the 10 drugs was achieved on a 25 cm x 4.6 mm ID, 10 microns Zorbax C8 column, using methanol--0.05 mol.L-1 KH2PO4--diethyl amine (27:73:0.5, pH 4) as mobile phase. Codeine was used as the interal standard. Calibration graphs were linear over the concentration range of 10-200 micrograms.ml-1 and regression equations showed correlation coefficients of greater than 0.999. Precision (RSD) were found to be better than 3% for each compound. Precision and linearity of the method are satisfactory for clinical toxicological applications. The extraction procedure yielded cleaner extracts. The recovery rates from urine were all above 87% without interference. This method is rapid, sensitive and specific.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050.
authors.forename: C
authors.initials: C
authors.lastname: Ma
authors.forename: H
authors.initials: H
authors.lastname: Duan
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: Y
authors.initials: Y
authors.lastname: Xu
authors.forename: T
authors.initials: T
authors.lastname: Zhou
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003061:Codeine / Q000652:urine; D003932:Heroin / Q000652:urine; D006801:Humans; D009020:Morphine / Q000652:urine*; D019966:Substance-Related Disorders / Q000652:urine*
chemical_list: D003932:Heroin; D009020:Morphine; D003061:Codeine