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. 2016 May 16;11(5):e0155584. doi: 10.1371/journal.pone.0155584

Fig 4. Mass spectra of sulfur-containing carbon-chain amino acids Cys (a) and Met (b) in solution after plasma treatment for 0–30 min, and a simplified decomposition model of Cys (c) and Met (d) presented according to the HRMS analysis.

Fig 4

A molecular structure of the proposed product is shown for each peak.