Hydrogen sulfide （H2S）, as the third gasotransmitter after nitric oxide （NO） and carbon monoxide （CO）, is attracting more and more attentions by the reason of regulating the growth and development process and stress responses in plants. Calcium （Ca2＋） has been regarded as a core transducer and regulator in many adaptation processes of plants. In this […]
According to the diffidence of the solubility product, the zinc and copper should be precipitated by H_2S in the nickel and cobalt acid pressure leaching solution. The precipitation rates of zinc and copper are beyond 80% with the loss rate of nickel is below 1%.