SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS
: a-LINOLENIC ACID METHYL ESTER
: ais-9, cis-12, ais-15 octadecatrienoic acid methyl ester; C19H32°2; MW = 292
Unilever Res. Lab., Vlaardingen, The Netherlands solution in methanol; 10 ng ferromagnetic tube; T 770°C
eq remarks - The strong homologous ion series at m/z 66, 80, etc. may well represent cyclic dienes and/or aliphatic trienes, especially in view of the multiple unsaturation in the parent molecule. A minor series of homologous ions at m/z 87, 101, etc., also observed in the spectrum of y-linolenic acid methyl ester (Spectrum D.4), could be connected with the presence of the methyl ester function.
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