Fig. 2

Partial total ion chromatogram (TIC) of the TMS derivatised total lipid extract of sample DA177. Key: n-alkanoic acids (FA) are indicated by circles; n­-alkanes (ALK), squares; fatty acyl monoesters (WE), black asterisks; hydroxyl fatty acyl monoesters (HWE), white asterisks and fatty acyl diesters (DWE), grey asterisks. The internal standards n-pentacosanoic acid (C_25:0) and n-tetratriacontane (C_34:0) are indicated by IS at 20.1 and 22.8 min, respectively. The acyl carbon number (n) and degrees of unsaturation (i) is indicated by n:i