Most substances were amenable to gas chromatographic (GC) introduction to the mass spectrometer (MS), but where thermal degradation was encountered with GC-MS analysis, mass spectra of the particular benzodiazepines were recorded using the direct exposure probe (DEP) technique. Useful MS data for some end products and artifacts of degradation are included also. GC retention times are reported on both a retention indices basis as well as relative to proadifen internal standard. Disclosure of the sources of specimens, provision of their generic and trade names and respective structures, Chemical Abstracts numbers and names, render this compilation of benzodiazepines GC and MS data invaluable to the forensic toxicologist. 3 tables, 1 figure, 14 references. (Publisher abstract)