Biomaterial Database

Fluorescence--TLC densitometric determination of diazepam and other 1,4-benzodiazepines in serum. 1978

S R Sun

A sensitive fluorescence--TLC densitometric procedure was developed for the specific determination of diazepam (I) and its two metabolites, desmethyldiazepam (II) and oxazepam (III), in serum. After extraction from serum with benzene, the compounds were separated by TLC and converted with a sulfuric acid spray to greenish-yellow fluorescence spots with Rf values of 0.72, 0.43, and 0.17, respectively. Quantitation of the TLC plate was accomplished by scanning with a densitometer at 380 nm. The sensitivities of the assay were 18 (I), 6 (II), and 5 (III) ng/ml of serum. This procedure was also was applicable to other 1,4-benzodiazepines in biological fluids.

UI	MeSH Term	Description	Entries
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D010076	Oxazepam	A benzodiazepine used in the treatment of anxiety, alcohol withdrawal, and insomnia.	Adumbran,Serax,Tazepam
D002855	Chromatography, Thin Layer	Chromatography on thin layers of adsorbents rather than in columns. The adsorbent can be alumina, silica gel, silicates, charcoals, or cellulose. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Chromatography, Thin-Layer,Thin Layer Chromatography,Chromatographies, Thin Layer,Chromatographies, Thin-Layer,Thin Layer Chromatographies,Thin-Layer Chromatographies,Thin-Layer Chromatography
D003708	Nordazepam	An intermediate in the metabolism of DIAZEPAM to OXAZEPAM. It may have actions similar to those of diazepam.	Dealkylprazepam,Demethyldiazepam,Deoxydemoxepam,Desmethyldiazepam,Nordiazepam,Calmday,N-Desalkylhalazepam,N-Descyclopropylmethyl-Prazepam,N-Descyclopropylmethylprazepam,N-Destrifluoroethylhalazepam,Nordaz,Norprazepam,Ro 5-2180,Tranxilium N,Vegesan,N Desalkylhalazepam,N Descyclopropylmethyl Prazepam,N Descyclopropylmethylprazepam,N Destrifluoroethylhalazepam,Ro 5 2180,Ro 52180
D003720	Densitometry	The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material.	Densitometries
D003975	Diazepam	A benzodiazepine with anticonvulsant, anxiolytic, sedative, muscle relaxant, and amnesic properties and a long duration of action. Its actions are mediated by enhancement of GAMMA-AMINOBUTYRIC ACID activity.	7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one,Apaurin,Diazemuls,Faustan,Relanium,Seduxen,Sibazon,Stesolid,Valium
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001569	Benzodiazepines	A group of two-ring heterocyclic compounds consisting of a benzene ring fused to a diazepine ring.	Benzodiazepine,Benzodiazepine Compounds
D013050	Spectrometry, Fluorescence	Measurement of the intensity and quality of fluorescence.	Fluorescence Spectrophotometry,Fluorescence Spectroscopy,Spectrofluorometry,Fluorescence Spectrometry,Spectrophotometry, Fluorescence,Spectroscopy, Fluorescence