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测定硫化物中的晶格金是近年来的热门话题,研究者希望获得直接的测定数据以证明晶格金存在。尽管已经进行了许多研究工作,其中化学法用H2O2-HCl、浓HNO3体系分离矿物中的晶格金。本文实验证明室温下金微溶于浓硝酸,也溶于H2O2-HCl,故前述化学法测定结果难以做为晶格金存在的依据。
The determination of lattice gold in sulfide has been a hot topic in recent years and researchers hope to obtain direct measurement data to prove the presence of lattice gold. Although much research work has been done, among them, H2O2-HCl and HNO3 systems are used to separate the crystal lattice in mineral. This experiment proved that gold is slightly soluble in concentrated nitric acid at room temperature, but also soluble in H2O2-HCl, so the results of the aforementioned chemical method is difficult as a basis for the existence of lattice gold.