Zusammenfassung. Die h d e r u n g des Retentionsindex mit dem Deuterierungsgrad ciniger Verbindungen wurden als Funktion der Temperatur und der stationaren Phase untersucht. Er zeigt grossc Regelmassigkeiten in der Abhangigkeit von der Anzahl der Deuteriumatome in der Molekel und von der stationaren Phase. Die Resultate gestatten eine Abschatzung der relativen Fluchtigkeit G( einer deuterierten Verbindung und der h d e r u n g der thermodynamischen Zustandsfunktionen bei der Deuterierung. With this in mind, we published a procedure that permits the determination of the isotopic distribution in a compound, even when the gas-chromatographic resolution does not allow the determination of the different isotope-isomeric species separately [24]. We have since used gas-chromatographic analysis as a routine procedure to measure deuterium distributions in different compounds. A literature survey shows that there is very little systematic data accumulated in this field. This in why we have collected some of our results of the past few years in order to facilitate research in this field. Because of the author's interest, most of the compounds studied are paraffins. We think that this should not invalidate some of the generalizations found, however.
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