abstract: In this paper we describe the thin layer chromatographic separation of eight of the most frequently used benzodiazepine derivates (alprazolam, bromazepam, chlorazepate potassium, chlordiazepoxide, diazepam, nitrazepam, oxazepam) and their degradation products after acid hydrolysis. Our aim was not only to develop a simple, rapid and efficient method for their separation but also the o...

We evaluated a commercially available enzyme immunoassay method for determining the concentration of total diazepam plus its active metabolite, nordiazepam, in small amounts of serum and urine. The coefficients of variation were 5% within assay and 8% between assay. Concentrations so measured for patients' sera correlated well with those obtained both by gas chromatography with electron-capture...