摘要
用三正辛胺萃取分离干扰离子,以5-Br-PADAP-TritonX-100为显色体系。提出了一种同时测定两组分的双波长作图法,并用于铁和锌的同时测定。线性范围:Fe^(3+)0～12μg/25ml,Zn^(2+)0～10μg/25ml。合成样回收率100.9%～102.4%,铝合金标样分析结果的相对误差小于±3.0%.方法简便、准确。
Trioctylamine is used to extract and separate zinc and iron from interference ions.5-Br-PADAP—Triton X-100 is used as a coloured system.A double wavelength graphical method for simultaneous determination of zinc and iron has been developed.Linear ranges are 0-12μg/25ml for iron(Ⅲ)and 0-10μg/25ml for zinc(Ⅱ).The extraction recorvery of analytical results for standard samples of aluminium alloy is less than ±3.0%.This method is simple and accurate.
出处
《冶金分析》
EI
CAS
CSCD
北大核心
1997年第6期4-6,14,共4页
Metallurgical Analysis
关键词
双波长作图法
三正辛胺
萃取
显色体系
铁
锌
Double wavelength graphical method
Trioctylamine extraction
5-Br-PADAP-Triton X-100 coloured system
Iron
Zinc
Aluminium alloy
