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. 2018 Jan 16;26:e20170161. doi: 10.1590/1678-7757-2017-0161

Figure 2. Determination of the minimum concentrations for inhibition of H2S volatilization using serially diluted aqueous solutions of ZnCl2, CuCl2, CdCl2, and CH3COOAg. The strength of H2S volatilization inhibition was in the following order: Ag+ > Cu2+ > Cd2+ > Zn2+.

Figure 2