论文部分内容阅读
提出用石油醚溶解样品 ,硝酸 (1 +99)萃取 ,火焰原子吸收法测定叠氮树脂中痕量铜和铁的方法。铜、铁的相对标准偏差均小于 4.5% ,回收率在 97.0 %～ 1 0 2 .0 %之间 ,测定结果满意
A method for the determination of trace amounts of copper and iron in azide resin by petroleum ether dissolved sample, nitric acid (1 +99) extraction and flame atomic absorption spectrometry was proposed. The relative standard deviations of copper and iron were less than 4.5% and the recoveries were between 97.0% and 102.0%. The results were satisfactory