摘要
设计了在线液－液萃取多用重力分相器及相应流动注射流路系统与ＩＣＰ－ＡＥＳ法联用，具有良好的分析性能．通过对矿石中某些重稀土元素在硝酸介质中被ＴＢＰ萃取的应用研究表明钇、镱、铒的检出限（３σ）分别为：６．８ｎｇ／ｍＬ、０．２ｎｇ／ｍＬ和１．５ｎｇ／ｍＬ．精密度（ＲＳＤ％）分别为０．２４、０．４７和１．８．进样频率为２５～３０个／ｈ．
A new versatile phase separator for flow injection solvent extraction has been designed and its analytical performance investigated. Manifold for ICP-AES and the corresponding operating procedures has been established. Experimental results show that the combination of flow injection-liquid-liquid extraction with ICP-AES is feasible and applicable. The detection limits for yttrium,ytterbium and erbium were 6.8,0.2 and 1.5 ng·mL -1 ,and the relative standard deviations were 0.24,0.47 and 1.8%,respectively.
出处
《分析科学学报》
CAS
CSCD
1998年第3期240-243,共4页
Journal of Analytical Science
关键词
分相器
ICP
矿石
稀土
液液萃取
钇
镱
铒
分析
Flow injection-liquid-liquid extraction
Phase separator
Inductively coupled plasma atomic emission spectrometry
Solvent plasma loading
