摘要
研究了吗啉荒酸吗啉与Mn( Ⅱ) 显色反应的条件,确定在pH= 8 .0 ~8 .9 形成棕红色配合物,最大吸收波长λmax = 496nm ,摩尔吸光系数ε= 4 .0 ×103 L·mol-1·cm - 1 ,应用拟定方法测定合成水样中Mn( Ⅱ) 含量,结果满意.
Morpholine dithiocarbamate morpholine chloride(MDMC) is a new colour reagent for the determination of Mn(Ⅱ) in NH 3- NH 4Cl buffer solution at pH=8.0~8.9.The molar absorptivity is 4.0×10 3L.mol -1 ·cm -1 for Mn(Ⅱ)-complex at 496nm.This method has been applied to the determination of Mn(Ⅱ) in synthetical water sample with satisfactory results.
出处
《环境与开发》
1999年第4期48-48,共1页
Environment and Exploitation
关键词
吗啉荒酸吗啉
萃取光度法
水库
水质监测
Morpholine dithiocarbamate morpholine chloride(MDMC)
Extracion spectrophotometry
Mn(Ⅱ)
Synthetical water sample