Fig. 2From: Multivariate Analysis of ToF-SIMS Data from Multicomponent Systems: The Why, When, and HowPeak area plots from the chocolate data. a m/z = 23 (Na), a negative loading peak. b m/z = 605 (diacylglyerol peak), a positive loading peak. As expected from the PCA results, the relative intensity of Na is higher on sample 1 and the relative intensity of the diacylglycerol peak is higher on sample 2Back to article page