摘要
本文针对钒钛磁铁矿中共存金属离子,拟定了微量金属钪与它们的分离,及偶氮氯膦Ⅱ分光光度法进行测定。共存金属离子不干扰钪的分离和测定。加入微量钪可定量回收。Sc(Ⅱ)—CPAⅡ结合物最大吸收波长为680nm,表观摩尔吸光系数为1.18×10~4L·mol^(-1)·cm^(-1)。21ml溶液中钪在O—10μg符合比尔定律。本方法适用于钒钛磁铁矿中微量钪的快速测定。
Microamounts of scandium were separated from vandous titanomagnetite and its spectrophotometric determination was carried out with chlorophosphonazoⅢ (CPAⅢ) in the presence of the coexistent metallic ions. However these ions did not interfere the separation and determination of scandium. Microamounts of scandium were recovered at almost 100%. Sc (Ⅲ)-CPAⅢcomplex has a maximum absorption at 680nm at a molar absortivity of 1.18×10~4 L· mol^(-1). cm^(-1). Beer's law is obeyed for 0-10μg scandium in 21ml solution. The method has been applied to the determination of microamounts of scandium in vanadous titanomagetite.
出处
《矿冶工程》
CAS
CSCD
北大核心
1992年第4期67-69,共3页
Mining and Metallurgical Engineering
关键词
钒钛磁铁矿
钪
分光光度法
Vanadous titanomagnetite, Scandium, ChlorophosphonazoⅢ, Spectrophotometry
