Pyrolytic Methylation/Gas Chromatography: A Short Review

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Abstract
Within the context of gas chromatography, pyrolytic methylation can be defined as the process whereby a volatile methyl derivative of an acidic compound is formed within the injector block of a gas chromatograph by the thermal decomposition of a quaternary N-methylammonium salt of the acid. The methyl derivative and the other volatile products of the reaction are then swept into the column by the carrier gas and are eluted in the usual manner. These phenomena form the basis of a rapid and versatile gas chromatographic method for the analysis of a variety of organic compounds containing acidic N-H and O-H functional groups.

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