摘要
在 p H 3的弱酸性介质中 ,用吡咯烷二硫代氨基甲酸铵 ( APDC) -甲基异丁基酮 ( MIBK)萃取分离稀土氧化物以消除基体干扰 ;用火焰原子吸收光谱法测定了氧化铕、氧化钐中的痕量锌 ,相对标准偏差 ( n=9)分别为 5.8% ,3.6 % ;试样加标回收率分别为 97%～ 98% ,95%～ 1 0 2 %。
A method for the determination of trace zinc in high purity europium oxide and samarium oxide by solvent extraction atomic absorption spectrometry was developed.The interferences from rare earth oxide matrix on the determination of zinc were removed by extraction with APDC MIBK.The recoveries of standard addition for europium oxide and samarium oxide were 97%～98% and 95%～102%, respectively, and RSD( n =9) was 5.8%,3.6%,respectively.
出处
《分析试验室》
CAS
CSCD
2000年第4期69-70,共2页
Chinese Journal of Analysis Laboratory
关键词
原子吸收光谱法
锌
氧化钐
氧化铕
测定
Atomic absoription spectrometry
Solvent extraction separation
Zinc
Samarium oxide
Europium oxide
