Source_data_Fig6

<b>Typical <i>m/z</i> profiles as obtained by LA-REIMS analysis of human biofluids.</b> Number of features that were measured per <i>m/z</i>-class upon LA-REIMS analysis of saliva, plasma, urine, feces, milk, and sputum, in positive (a) and negative (b) ionization mode. For each matrix type, a single list of <i>m/z</i>-features was acquired, based on the processing of ten rawfiles (single burns), as obtained from ten different samples (i.e. individuals).