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Analysis of Gases via Gas Chromatography - Part 1: Nitrous Oxide

by Jaap de Zeeuw, Restek Corporation, Middelburg, The Netherlands.

Gas chromatography (GC) is a technique that deals with gas separations. Practically the components to separate must be brought in the gaseous phase to be able to be transported by the carrier gas. In order to do that, the temperature of the sample and column can be increased. Today’s gas chromatographs can be used up to 500 °C, meaning that it is possible to analyse components with boiling points around 700 °C. The component must be thermally stable. This works fine for hydrocarbons but more polar molecules will decompose.


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