Figure 2.
(a) TM-DESI-MS of a mock sample containing nicotine (1 μM), captopril (10 μM), sodium chloride (10 mM), and potassium chloride (10 mM) from an underivatized nylon mesh. (b) CID spectrum for captured and tagged captopril (precursor m/z 346 Da) (c) Extracted ion chronogram for ion m/z 231 indicating the distribution of the captured analyte across the mesh surface.