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.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1993年第8期911-913,共3页
Chinese Journal of Analytical Chemistry
关键词
锶
间溴偶氮羧-M
分光光度法
Strontium. Metabromocarboxyazo-m, Spectrophotometry.
