Fig. 2: LC-MS/MS quantification of CAM-S-CAM-TPP and S(CAM-TPP)2.

a Representative multiple reaction monitoring (MRM) chromatograms from LC-MS/MS analyses of 0.5 pmol compound displaying the simultaneously measured m/z transitions diagnostic for CAM-S-CAM-TPP, S(CAM-TPP)2 or their respective deuterated internal standards. All chromatograms are normalised to the highest peak for each sample. b Standard curves for the detection of CAM-S-CAM-TPP and S(CAM-TPP)2 by LC-MS/MS. The MS response at different compound concentrations was normalised to that of 0.5 pmol of the corresponding deuterated internal standard. Source data are provided as a Source Data file.