[A new method for the continuous determination of ethrane in the blood and the expired air by means of gaschromatography as end-analytic system (author's transl)].

A method for continuous measurement of the anaesthetic Ethrane in blood and gas samples is described. Using the same GC-parameters for the analyses of gases and blood extracts, a short GC-column together with high oven temperature as well as shortening of preparation (extraction) time allows the analysis of two blood samples and one gas sample within 15 minutes' steps (the time for an additional gas sample analysis being max. 3 min). Thus a quasi simultaneous follow up of the course of anaesthesia in animals and in humans may be guaranteed.