期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Determination of Trace Impurities of Rare Earth Elements in High Purity Yttrium Oxide by ICPMS 被引量:2
1
作者 刘晶磊 童迎东 章新泉 《Journal of Rare Earths》 SCIE EI CAS CSCD 1995年第1期52-57,共6页
Determination of trace rare earth elements(REEs)in 99. 999% purity yttrium oxide using the inductively coupled plasma mass spectrometric technique (ICPMS) has been developed. Instrumental parameters and factors affeci... Determination of trace rare earth elements(REEs)in 99. 999% purity yttrium oxide using the inductively coupled plasma mass spectrometric technique (ICPMS) has been developed. Instrumental parameters and factors affecitng analytical results have been studied and then optimized.Samples are analyzed directly following an acid digestion without separation or preconcentration and with limit of detection of 0. 003~0. 02 ng/ml, precision of ±5. 4%(cofficient of variation)and recovery of 90~115%. Correction for isobaric interferences from oxide ions and hydroxide ions is made mathematically. Special internal standard procedures are used to compensate drift in metal:metal oxide ratios and sensitivity. The analytical results of several samples are accurate as compared with inductively coupled plasma atomic emission spectrometry (ICPAES) and spark source mass spectrometry (SSMS). 展开更多
关键词 ICPMS High purity yttrium oxide determination of trace rare earth element
下载PDF
THE USE OF CHELATING RESIN FOR THE PRE-CONCENTRATION OF TRACE RARE EARTH ELEMENTS IN BIOLOGICAL SAMPLES AND THEIR DETERMINATION
2
作者 祝孝丰 张田 扆军 《Journal of Rare Earths》 SCIE EI CAS CSCD 1990年第2期128-132,共5页
Macroporous amino-carboxvlic chelating resin of acrylic acid series may concentrate trace rare earth in the presence of 0.1 mol/l α-hydroxy-isobutyric acid at pH 4.5.With 0.10 mol/l HCl as eluant rare earth may be el... Macroporous amino-carboxvlic chelating resin of acrylic acid series may concentrate trace rare earth in the presence of 0.1 mol/l α-hydroxy-isobutyric acid at pH 4.5.With 0.10 mol/l HCl as eluant rare earth may be eluted quantitatively and separated from Ca,Mg,Fe and Cu.This method is used to determine trace amount of rare earth in human hair,stone (in kidney and bladder),peanut,grape,strawberry,cucumber,pig liver and other biological samples. 展开更多
关键词 HCI THE USE OF CHELATING RESIN FOR THE PRE-CONCENTRATION OF TRACE rare earth elementS IN BIOLOGICAL SAMPLES AND THEIR determination PMBP
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部