摘要
在室温下以硝酸为介质,钯与DSPCF形成有色络合物,其表观摩尔吸光系数ε_(520)=1.2×10~4,络合物组成为Pd(Ⅱ):DSPCF=1:2。其特点是在室温下发生显色反应,当加入HNO_3使介质达1.75N时,只有Pd(Ⅱ)—DSPCF红色络合物不褪色,可用于铂钯二次精矿等的测定。
A specific absorption curve of Pd—DSPCF has been reported in nitrate acid at room temperature, ε_(520)=1.2 X 10~4L.mol^(-1).cm^(-1), the ratio of Pd to DSPCF is 1:2. The color reaction occurs at room temperature and only the red color complex of Pd-DSPCF does not been decolored in 1.75N nitrate acid. This method can be use to determine palladium in ores with satisfactory results.
出处
《贵金属》
CAS
1988年第4期42-45,共4页
Precious Metals
关键词
钯
分光光度法
测定
Palladium
spectrophotometry
determination
