Figure 6 | Scientific Reports

Figure 6

From: Decomposition and oxidation of methionine and tryptophan following irradiation with a nonequilibrium plasma jet and applications for killing cancer cells

Figure 6

Plasma-irradiation time dependence of the mass-spectral intensity at m/z = (a) 205 (tryptophan), (b) 221, and (c) 237 in plasma-treated tryptophan solution. The concentration of tryptophan was evaluated from the mass-spectral intensity by comparison with a calibration curve of mass-spectral intensity vs. concentration.

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