摘要
为了对铜镍合金中的镍进行快速测定,提出了丁二酮肟光度法,利用盐酸和过氧化氢溶解合金样品,加入柠檬酸铵对三价铁离子进行遮蔽,当介质中存在碘时,丁二酮肟可以与镍生成可溶性酒红色络合物,配合分光光度法,能够实现对镍含量的准确测定。
In order to make a rapid determination of nickel in copper-nickel alloys,a dimethylglyoxime photometric method was proposed in this paper.Hydrogen chloride and hydrogen peroxide were used to dissolve the alloy samples.Ammonium citrate was added to shield the ferric ions.In the presence of iodine,dimethyloxime oxime can form soluble burgundy complexes with nickel,and with the spectrophotometric method,accurate determination of nickel content can be achieved.
出处
《化工设计通讯》
CAS
2018年第7期138-138,共1页
Chemical Engineering Design Communications
关键词
丁二酮肟光度法
铜镍合金
镍
应用
dimethylglyoxime photometry
copper-nickel alloy
nickel
application
