锶与间溴偶氮羧-m显色反应及其应用研究  

Colour Reaction Between Strontium and Metabromocarboxyazo-m and Its Application

作　　者：邓桂春[1] 王永春[1] 张浩 

机构地区：[1]辽宁大学化学系,沈阳110036

出　　处：《分析化学》1993年第8期911-913,共3页Chinese Journal of Analytical Chemistry

摘　　要：本文报道锶与间溴偶氮羧-m的显色反应,在pH2.60～3.68时,常温下形成β型络合物,表观摩尔吸光系数为ε_(705)5=1.6×10~5L·mol^(-1)·cm^(-1),锶量在0～14μg/25ml范围内服从比耳定律,络合物组成Sr:R为1:2。The colour reaction of strontium with metabromocarboxyazo-m(R) is proposed. The β-type complex is formed at room temperature and pH 2. 60-3. 68. The apparent molar absorptivity is 1. 6×105 L · mol-1 · cm-1at 705 nm. Beer's law is obeyed for strontium in the range of 0-14μg/25 ml. The ratio of Sr and R in the complex is 1 : 2.

关 键 词：锶 间溴偶氮羧-M 分光光度法 

分 类 号：O614.232[理学—无机化学]