镧对火焰原子发射光谱法测定镱的增感效应与应用  

Sensitization of Lanthanum on the Determination of Ytterbium by Air-Acetylence Flame Atomic Emission Spectrometry and Its Application

作　　者：张杰[1] 张在整[1] 陈华章[1] 

机构地区：[1]福州大学中心实验室,福州大学化学系

出　　处：《冶金分析》1996年第6期7-9,22,共4页Metallurgical Analysis

基　　金：福建省自然科学基金

摘　　要：研究了盐酸、硝酸、高氯酸介质中，稀土元素钕、钇、镧、铕、钐对空气─乙炔焰原子发射光谱法测定镱的影响。提出了１％ＨＣｌＯ４介质中，以１０００μｇＬａ／ｍｌ作为增感试剂测定Ｙｂ的方法。方法选择性好，非镱稀土及非稀土元素允许存在量高。本方法测定Ｙｂ的线性范围为０～２０μｇ／ｍｌ，检测限为０．１４μｇ／ｍｌ。应用测定富钇混合氧化稀土浓集物中的Ｙｂ和Ｙ２Ｏ３粗产品中的Ｙｂ，获得满意的结果。This paper focuses on the study of the influences of neodymium,yttrium,lanthanum,europium and samarium on the determination of ytterbium by air-acetylence flame atomic emission spectrometry in the medium of hydrochloric acid,nitric acid and perchloric acid.Ytterbium was determined in the medium of 1% perchloric acid using 1000μg/ml lanthanum as the sensitive agent.This method has high selectivity.A large amount of common non-ytterbium rare-earth and non-rare-earth elements do not interfere.The linear range of the calibration curve of ytterbium is 0-20μg/ml Yb,detection limit is 0.14μg/ml.This method has been used in the determination of trace amounts of ytterbium in the mixture of rare-earth oxides.as well as crude products of yttria with satisfactory results.

关 键 词：镱 原子发射光谱法 增感效应 

分 类 号：O614.346[理学—无机化学] O657.31[理学—化学]