摘要
本文用提高样品蒸发速率的方法提高氧化钪中难熔杂质光谱分析灵敏度。采用一种特殊的阴极设计，配合使用Ｎ＿２＋Ａｒ气氛控制，在旋流气室中放电激发，取样仅５ｍｇ的条件下，光谱测定氧化钪中难熔杂质Ｔｉ、Ｚｒ、Ｍｏ、Ｗ、Ｖ灵敏度可达（１～３）×１０￣（－４）％。测定的相对标准偏差为９％～２７％。
he method described improves analyti-cal sensitivities of involatile impurities inSc_2O_3 by use of a cathode designed specialiyto speed up evaporation of the sample,Thesamples were excited by DC are in cyclonechamber with gas mixture of Ar and N_2 asthe control atmosphere. Under these condi-tions,only 5mg of sample was required andthe detection limits for involatile impuritiesTi,Mo,W,V and Zr in Sc_2O_3 are in therange of(1～3Z ×10￣(-4)%with 9%～27% of relative errors.
出处
《分析试验室》
CAS
CSCD
北大核心
1995年第5期70-74,共5页
Chinese Journal of Analysis Laboratory
关键词
钛
钼
钨
钒
锆
氧化钪
摄谱分析
Scandium oxide,involatileelement determination
cyclone chamber
control atmosphere
