Gas chromatography (GC) of barbiturates is currently carried out mostly on the bis-N,N'-alkyl derivatives. Free barbiturates, even on apolar or medium polar phases, adsorb irreversibly, rendering GC difficult or impossible [ l ] . This behaviour is observed both for
Identification and quantitation of trace amounts of barbiturates with glass capillary gas chromatography
✍ Scribed by Dünges, W. ;Langlais, R. ;Schlenkermann, R.
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 310 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
Pre‐chromatographic reactions are no longer a necessary evil. Equipment such as the microrefluxer now allows reproducible 7‐μl‐reactions to be carried out in a short time. Thus multiple derivatisations can be used together with glass capillary GC for routine identifications. The method has been succesfully applied to barbiturates. Retention data of their methyl‐, allyl‐ and benzyl‐derivatives are given.
Quantitative blood level determinations are briefly discussed.
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