Chemical Details

SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS

remarks - Compared to sodium lauryl sulphate (Spectrum D.l), a saturated aliphatic acid, the linoleic acid pattern shows a higher abundance of relatively short chain polyunsaturated hydrocarbon ion series. To some extent this difference may be due to the effect of oven pyrolysis. Also noteworthy is the absence of prominent fragment ion series, apparently as a result of the low abundance of labile, saturated, long-chain hydrocarbons in the pyrolysate. Whether the ion series at m/z 78, 92, etc. represents aromatic or multiple unsaturated aliphatic ions cannot be decided from this spectrum.

: LINOLEIC ACID

: ds-9, ois-12 octadecadienoic acid; C,oH,,0,,; MW = 280 18 32 2

: Lipid Supplies, St. Andrews Univ., UK

: solution in methanol; 10 yg

100 120 140 160 m/z

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