摘要
研究了在碱性介质中，空气氧化Ｍｎ（Ⅱ）为Ｍｎ（Ⅳ）后在酸性介质中，Ｍｎ（Ⅳ）氧化二安替比林对乙氧基苯基甲烷（ＤＡｐＥＭ）生成黄色产物，λｍａｘ＝４５０ｎｍ，ε＝１．４９×１０５，锰的含量在０～１０μｇ／２５ｍＬ内符合比尔定律，方法用于钢铁样品中锰的测定，结果满意．
In the alkaline medium, manganese(Ⅱ) was oxidized to manganese (Ⅳ) by air. In the phosphoric acid medium,manganese(Ⅳ) reacted with diantipyryl- (ethoxy) -phenylmethane (DApEM) to form a yellow product. The malor absorptivityis 1.49×10~5 L· mol-1· cm-1 at 450um, Beer's law is obeyed in the range of 0-10μg/25mL. This method can applied tothe determinatiion of manganese in steel with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
1999年第3期19-20,共2页
Metallurgical Analysis
关键词
光度法
锰
DApEM
显色反应
钢铁样品
测定
Diantipyryl- (p-methoxy) -phenylmethane, Manganese, Spectrophotometry
