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Total Ag release cumulated over time from the plasma coatings of series (a) NH3/C2H4 = 2 : 1. (b) NH3/C2H4 = 4 : 1. The amount of Ag in solution during the first day of incubation is indicated with the dashed line. For comparison, the total release from a plain metallic Ag layer (Ag ref.) is shown. Diamonds, 8 W; open squares, 15 W; triangles, 25 W; circles, 50 W; filled squares, Ag ref.
