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. 2017 Jul 4;7:4562. doi: 10.1038/s41598-017-04650-4

Figure 11.

Figure 11

Percentage of degradation of amino acids (0.2 mM) in water after He plasma treatment at various exposure time. The percentage of degradation of each amino acid for an exposure time to He plasma was determined by the following ratio [x−y]/x; where x corresponds to the intensity of the mass peak of the amino acid before treatment and y to the intensity after exposure to He plasma.