摘要
在磷酸(1+10)介质中,二安替比林苯甲烷(DAPM)与过硫酸铵生成—橙色物质,微量铜能使其显色产物的吸光度值降低,铜浓度在0～5μg/10mL范围内符合比尔定律,λmax=475nm,ε=5.35×106L/mol·cm。由此建立了微量铜的测定方法,并用于铝合金中铜的测定,结果满意。
in Phosphoric Acid medium,Diantipyrylphenylmethane is oxidized to form an orange product, the product's extinction reduces because of minor Copper(Ⅱ).Beer's law is obeyed in the range of 0～5 μg/10mL Copper(Ⅱ).The maximum absorption of the product is at 475nm ,and it molar absorptivity is 5.35×10~6L/mol·cm.This method has been applied to the determination of minor Copper(Ⅱ) in Alminum alloys and the result is satisfactory.
出处
《湖南有色金属》
CAS
2005年第3期36-37,62,共3页
Hunan Nonferrous Metals
关键词
二安替比林苯甲烷
铜
光度法
铝合金
Diantipyrylphenylmethane
Copper(Ⅱ)
Spectrophotometry
Aluminum alloys
