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L'indice de rétention des alcanes isomères en chromatographie en phase gazeuse

✍ Scribed by Serge Rappoport; Tino Gäumann

Publisher
John Wiley and Sons
Year
1973
Tongue
German
Weight
668 KB
Volume
56
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

A method, using the radiolysis of an alkane, for the obtention of a great number of branched hydrocarbons is given. The retention index at 100° as well as its variation with temperature is determined on Apiezon L for 200 alcanes containing between seven and twenty four carbons. It is shown that for branched hydrocarbons the decrease of the retention index is mainly due to the length of the substituent group but also to its position on the chain. Some rules between retention index and molecular structure are deduced that allow the determination of the index of higher branched hydrocarbons. It is also shown that the variation of the retention index with temperature is only a function of the length of the substituent group.

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Indices de rétention de cycloalcanes, cy
Indices de rétention de cycloalcanes, cycloalcènes, bicycloalkyles, cycloalkyl-cycloalcényles et bicycloalcényles en chromatographie en phase gazeuse
✍ Richard Besson; Tino Gäumann 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 German ⚖ 306 KB

## Abstract The retention indices for cycloalkanes, cycloalkenes and bicyclic compounds have been measured as a function of temperature for different liquids phases. The diastereomeric bicycloalkenyl‐2 were separated. Some rules concerning the indices are given.