摘要
用螯合树脂作吸附剂,流动注射法分离富集烧碱中铁、镍、铜,火焰原子吸收光度法测定,在120h^(-1)、60h^(-1)的采样频率下,三种元素富集倍数分别为6.5,13.5,14。方法用于工业烧碱中铁、镍、铜测定,回收率分别为96.2％、96.4％和97.4％,RSD分别为2.5％、3.6％和3.5％。
A flow injection system with chelating resin filled miniature column was used to separate and preconcentrate Fe^(3+) , Ni^(2+) and Cu^(2+) from caustic soda for the determination with flame atomic absorption spec-trometry. At sampling frequencies of 120h^(-1), 60h^(-1) and 60h^(-1) preconcentration factors of 6.5, 13. 5 and 14 for Fe^(3+)? Ni^(2+)?Cu^(2+) were attained respectively. The method has been successfully used for the determination of the three metals in industrial caustic soda, with recoveries of 96. 2%, 96.4% and 97. 4% and RSD of 2.5% , 3. 6% and 3. 5% respectively.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
1999年第4期174-175,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
流动注射
原子吸收
烧碱
镍
铜
铁
测定
Flow injection analysis, Atomic absorption spectrometry, Caustic soda, Nickel, Copper, Iron
