Figure 7
Validation of the isotopic correction algorithm using a PA mixture. Molar ratios of PA standards were determined in four replicates with and without isotopic correction of abundances of peaks within partially overlapping isotopic clusters. Molar ratios in MS spectra were determined from the abundances of precursor peaks and in MS/MS spectra as the sum of the abundances of acyl anions of the fatty acids moieties. Error bars stand for standard deviations from the average molar ratios.