论文部分内容阅读
在聚乙烯醇存在下,用乙基紫和硫氰酸盐在水相测定钌的灵敏光度法。在0.42M 硫酸介质中,缔合物之λ_(max)为560nm,摩尔吸光度ε_(?)=1.1×10~(?)l·mol~(-1)·cm~(-1)。研究了此体系测定钌的适宜条件和线性范围以及各种共存离子的影响。测定某些贵金属样品中钌的结果与其他方法的结果吻合较好。
Sensitometric determination of ruthenium in ethyl acetate and thiocyanate in aqueous phase in the presence of polyvinyl alcohol. In 0.42M sulfuric acid medium, the λ max of the complex is 560 nm and the molar absorptivity ε _ = 1.1 × 10 ~ (·) l · mol -1 (-1) cm -1. The suitable conditions and linear range of this system for the determination of ruthenium and the influence of various coexisting ions were studied. The determination of ruthenium in some precious metal samples is in good agreement with the results of other methods.