In comparison to the number of publications on the separation and analysis of fatty acids and their esters, analogous studies involving fatty amines are relatively scarce. A recently introduced ionic liquid based capillary column for gas chromatography was used to separate trifluoroacetylated fatty amines focusing on the analysis of a commercial sample. Working at constant 200�C temperature, it was possible to separate linear primary fatty amines from C12 to C22 chain length in less 25 min using mass spectrometry for identification. The log of the amine retention factors are linearly related to the alkyl chain length with a methylene selectivity of 0.117 Kcal mol-1 for the saturated amines and 0.128 Kcal mol-1 for the mono-unsaturated amines. The sp2 selectivity also could be calculated as 0.107 Kcal mol-1 for the IL column. Secondary amines were highly retained and tertiary amines were not easily separated by GC since they could not be derivatized. The commercial sample was quantified by GC-FID. The analysis of the commercial sample with GC-FID returned results coherent with the manufacturer's technical data and a discussion of their comparison will be presented.

Gas chromatographic determination of fatty amines using an ionic liquid based capillary column

247th National Meeting (2014)

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