论文部分内容阅读
偶氮氯膦-Ⅲ(CP-Ⅲ)属于对铍(Ⅱ)反应灵敏的邻-羟基偶氮基团的显色剂,文献研究了它对铍的荧光及显色反应。本文探讨了CP-Ⅲ与Be(Ⅱ)形成络合物的组成及其吸光性性。实验表明,铍与CP-Ⅲ在pH5.5左右的乙酸-乙酸钠介质中形成Be(Ⅱ):CP-Ⅲ=1:1
Chlorophosphonazo-III (CP-Ⅲ) belongs to the reagent of o-hydroxyazo group which is sensitive to beryllium (Ⅱ). Its fluorescence and color reaction to beryllium have been studied in literature. In this paper, the composition of the complexes formed by CP-Ⅲ and Be (Ⅱ) and their absorbance were discussed. Experiments show that beryllium and CP-Ⅲ form Be (Ⅱ) in acetic acid-sodium acetate at pH 5.5: CP-Ⅲ = 1: 1