Abstract
The model triglyceride mixture was analalysed by GC-MS (Gas chromatography-Mass spectrometry) with lower ionization voltage (20 eV) than previous studies. Lowering the ionization voltage was favorable for the ion intensity of RCO+ and [M-RCO2]+. As for the fatty acid composition in each triglyceride group with same total carbon number of three acyl chains, GC-MS method was compared with the calculation from total fatty acid composition. The fatty acid compositions by two methods were in good agreement.