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二安替比林对甲氧基苯基甲烷与锰(Ⅳ)的高选择性显色反应研究及应用
引用本文:黄章杰,杨光宇,尹家元,徐其亨.二安替比林对甲氧基苯基甲烷与锰(Ⅳ)的高选择性显色反应研究及应用[J].分析科学学报,1999(3).
作者姓名:黄章杰  杨光宇  尹家元  徐其亨
作者单位:云南大学科研处,云南大学化学系
摘    要:在碱性介质中,空气氧化Mn(Ⅱ)为Mn(Ⅳ),然后在酸性介质中,Mn(Ⅳ)氧化二安替比林对甲氧基苯基甲烷(DApMM)生成黄色产物,λmax=450nm,ε=5.45×104L·mol-1·cm-1。锰含量在0~20μg/25mL内符合比尔定律。方法用于钢样中锰的测定,结果满意

关 键 词:二安替比林对甲氧基苯基甲烷  分光光度法  

A High Selective Color Reaction of Manganese with \=Diantipyryl\|(p\|methoxy)\|phenylmethane \=and Its Application
Huang Zhangjie,Yang Guangyu,Yin Jiayuan,Xu Qiheng\.A High Selective Color Reaction of Manganese with \=Diantipyryl\|(p\|methoxy)\|phenylmethane \=and Its Application[J].Journal of Analytical Science,1999(3).
Authors:Huang Zhangjie  Yang Guangyu  Yin Jiayuan  Xu Qiheng\
Institution:Huang Zhangjie,Yang Guangyu,Yin Jiayuan,Xu Qiheng\+ *
Abstract:In the alkaline medium, manganese()was oxidized to manganese() by air. In the phosphoric acid medium, manganese() reacts with diantipyryl\|(p\|methoxy)\|phenylmethane(DApMM) to form a yellow product. The molar absorptivity is 5.4510\+4 Lmol\+\{-1\}cm\+\{-1\} at 450 nm. Beers law is obeyed in the range of 020 g/25mL. This method can be applied to the determination of manganese in steel with satisfactory result.
Keywords:Diantipyryl(pmethoxy)phenylmethane  Manganese  Spectrophotometry
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