摘要
研究了新试剂5-(3-甲基-2-吡啶)亚甲基若丹宁(MPMR)与金的显色反应。在酸性介质中;在CTMAB微乳液作用下,MPMR与Au(Ⅲ)生成2:1稳定络合物,金的含量在0~50μg/25mL内符合比尔定律,方法用于金矿石中痕量金的测定,结果满意.
The color reaction of 5- (3-methyl-2-pgridyl) methylencthodanine (MPMR) with gold (Ⅲ) has ben studied.In the presence of CYMAB, MPMR can react with Au (Ⅲ) to form a 2:1 stable complex. The molar aborptivity is 6.02×105L' mol-1-cm-1 at 435urn. Beer's law is obese in the range of Au/25mL. the mehtod can be applied tothe detendnation of gold in ore with satisfactory adults.
出处
《冶金分析》
CAS
CSCD
北大核心
1999年第1期13-14,共2页
Metallurgical Analysis
关键词
亚甲基若丹宁
金
光度法
测定
金矿石
显色剂
5-(3 - Methyl - 2- pyridyl) merhylenerhodanine, Gold. Spectrophotometry