title: Determination of methaqualone and its major metabolite in plasma and saliva after single oral doses.
abstract: A gas liquid chromatographic procedure for the determination of methaqualone and metabolite l (2-methyl-3(2-hydroxymethylphenyl)-4-(4H)-quinazoline) in plasma and saliva is described. The method requires 1.0 mL of sample and involves internal standard addition, extraction with butyl chloride, chromatography on a 1% SP-1,000 column packing using nitrogen phosphorous detectors. Within-run and day-to-day coefficient variations were less than 8% and the procedure has a sensitivity limit of 20 ng/mL. The method has been used to monitor both parent drug and metabolite in plasma and samples collected after a single oral dose.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D006801:Humans; D008702:Methaqualone / Q000032:analysis* / Q000097:blood; D012463:Saliva / Q000032:analysis*
chemical_list: D008702:Methaqualone