Fig. B.2
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Detection of [C21H31N4O3S]− (A) and [C23H35N6O3S]− (B) molecule ions. Detection by ESI-FT-ICR-MS of organosulfur (CHNOS) compounds, exemplarily shown for [C21H31N4O3S]− (B) and [C23H35N6O3S]− (B) molecular ions. The CHNOS-only spectrum (left panel, 3rd row, red) illustrates 908 CHNOS-assigned m/z signals that were absent in the Ar7+-irradiated ice (reference sample). For the isotopic fine structure: darkgray = experimental spectrum; red = simulated isotopic pattern.
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