Abstract
A detailed procedure for analysis of triazolam by GC-MS was constructed in our laboratory. At the concentration of 100 ng/ml, recoveries of triazolam in plasma and urine were 84.9 and 91.0%, respectively. The coefficients of variation in terms of its recovery were 11.5 (plasma) and 10.2% (urine). The detection limit for quantitation by the method was approximately 5 ng/g. This method was applied to two autopsy cases, giving triazolam distribution in body fluids and organs. In one case (33-year-old woman), concentrations of triazolam in the heart blood, urine, brain, lung, liver, kidney, skeletal muscles and stomach contents were 83.9, 741, 106, 165, 507, 293, 125 and 343 ng/g, respectively. From these toxicological data together with autopsy findings, her cause of death was diagnosed as triazolam poisoning. In the other case (45-year-old man), triazolam concentrations in the urine and stomach contents were 7.81 and 41.1 ng/g, respectively, but it could not be detected in the pleural blood; his cause of death was judged to be a traumatic shock, based on autopsy findings.
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