摘要
在硝酸介质中 ,稀土元素与二溴邻羧基偶氮氯膦生成蓝色配合物 ,其最大吸收峰在 64 5nm处 ,在稀土含量 0～16μg/ 2 5mL内符合比尔定律 ,方法选择性好 ,可不经分离直接测定铝合金中稀土含量。
The rare earth elements react on DBOKCPA to form a blue complex in the nitric acid,it's maximum absorption value is 645 nm,the contents of rare earth 0～16 μg/25mL accord with Beer's law.Most of the coexisting ions do not interfere with the reaction .It has been used to determine the content of rare earth in aluminium alloy.
出处
《江西冶金》
2000年第1期41-43,共3页
Jiangxi Metallurgy
