Ammonia 1 Automated data processing 1 Automatic calculations 1 Calculation software 1 Data analysis 1 Data handling 1 Electrospray ionization 1 Fats and oil 1 Fatty acids 1 Fragment ions 1 Glycerol 1 Ions 1 Mass spectrometry 1 Olive oil 1 Regioisomer 1 Regioisomeric composition 1 Regioisomers 1 Regiospecific analysis 1 Spectrum analysis 1 Triacylglycerol 1 Triacylglycerols 1 UHPLC-ESI MS=MS