摘要
本文研究了十种变色酸双偶氮胂类试剂与铋—钪的共显色反应,发现其中三溴偶氮胂等五种试剂与铋—钪有共显色反应。铋、钪与试剂生成的配合物的表现摩尔吸光系数为9.4×10~4L·mol^(-1)·cm^(-1)。大量的常见离子不干扰铋的测定,可不经分离直接测定合金中的微量铋。
The cocolourtion reaction of Bi-Sc with ten bisazo derivative of chromotropic acid containing —AsO_3H_2 have been studid in this paper. Five kind of reagents such as TBA were found to have cocolourtion reation with Bi-Sc. The apparent molar absorptivity of the polynuclear complex is 9.4×1~4L·mol^-1·cm^-1.A large amount of common ions don't interfere the determination of Bi. The trace Bi in alloy can be determined direatly without the separation.
出处
《分析科学学报》
CAS
CSCD
1993年第3期49-53,共5页
Journal of Analytical Science
