Typical high-resolution mass spectra of ROSINA/DFMS at m/z = 27, 28, 30, and 32, with the well-resolved peaks of HCN and C2H3 at m/z = 27 (top left); CO, N2 and C2H4 at m/z = 28 (top right); NO, CH2O, CH3NH, and C2H6 at m/z = 30 (bottom left); and CH3OH (bottom right). C2H3 is a fragment, while C2H4 may be part parent, part fragment. The background signal (BG) is also shown.
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