摘要
本文基于在pH4.5 0的邻苯二甲酸氢钾 -氢氧化钠缓冲液体系中 ,聚乙烯醇存在下 ,Mn(Ⅱ )对KIO4氧化乙基紫的褪色反应有显著的催化作用 ,将这一新指示反应和流动注射技术相结合 ,建立了流动注射催化光度法测定痕量锰的新方法。该法灵敏、快速、操作简便 ,线性范围 :Mn(Ⅱ ) 0～ 0 .48μg/mL ,分析速度为 2 4次 /h。
Mn(Ⅱ) has obvious catalytic action to fading reaction of KIO 4 oxodization ethyl violet under the condition of polyvinyl alcohol existence in potassium o-benzene dicarbonate-sodium hydroxide buffer solution with pH 4.50.Through the combination between this new directing reaction technology and flowing injection technology a new method for determining trace manganese used of flowig injection catalytic photometry is established.This method has the characters of flexibility,quick speed,convenient operation,and the linear limit is Mn(Ⅱ) 0～0.48μg/mL and the analyzing speed is 24 times/h.
出处
《山东冶金》
CAS
2000年第1期39-41,共3页
Shandong Metallurgy
关键词
乙基紫
锰
滚动注射
催化光度法
测定
ethyl violet
manganese
flowing injection
catalytic photometry
