Distribution of Straight Chain Fatty Acids Identified and Quantitated by GC-MS in Pollen of 22 Species.

Only compounds identified in the GC-MS relative quantitative analysis are shown. Compounds are sorted first by carbon-chain length, then by elution time in the gas chromatography and by abundance among the 22 pollen species.
aIdentification of compounds was based on a match of the mass spectrum from the NIST/EPA/NIH library and on similar retention time.
bIndicates the number of pollen species in which the lipid molecular species was present.
cMeans of retention times in minutes.
dBased on the relative peak area. The average concentration (mean ± SEM of 3 determinations) is given for samples. Averages of compounds identified in all three independent determinations are shown in bold. Average of compounds identified in only two out of three independent determinations are shown underlined.
n-nonadecane (nC19) TMS was used as internal standard (IS, retention time = 15.4 min) using a DB-5 60 column.