Determination of rare earth elements U and Th in environmental samples by inductively coupled plasma double focusing sectorfield mass spectrometry (ICP-SMS)

被引:89
作者
Prohaska, T [1 ]
Hann, S [1 ]
Latkoczy, C [1 ]
Stingeder, G [1 ]
机构
[1] Agr Univ Vienna, BOKU Wien, Inst Chem, A-1190 Vienna, Austria
关键词
D O I
10.1039/a806720a
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The excellent capability of high resolution inductively coupled plasma sectorfield mass spectrometry for measurements of the rare earth elements Th and U is demonstrated by investigating different materials such as geological matrices (sediments, soils), plant tissues and marine animal tissues. Appropriate digestion of the samples resulted in complex matrices, especially in the case of silicate containing samples. The elemental loss in silicate residues of plant material was found to be up to 30% and therefore required HF-containing digestion methods. The high concentration of matrix elements leads to spectral interferences, which are investigated by measuring the elements with different mass resolution. High mass resolution is shown to be a prerequisite for accurate determination of Sc and Y, respectively. Furthermore, effects of non spectral interferences are investigated and could be properly corrected for by using In-115 as internal standard. Moreover, the capability of a microconcentric nebulizer in combination with a membrane desolvation unit compared to a conventional microconcentric nebulizer is discussed with respect to suppression of spectral interferences. Oxide interferences could be reduced to a negligible amount, whereas it could be observed that high salt freight leads to a blockage of the membrane.
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页码:1 / 8
页数:8
相关论文
共 51 条
[1]   Microwave dissolution of plant tissue and the subsequent determination of trace lanthanide and actinide elements by inductively coupled plasma-mass spectrometry [J].
Alvarado, JS ;
Neal, TJ ;
Smith, LL ;
Erickson, MD .
ANALYTICA CHIMICA ACTA, 1996, 322 (1-2) :11-20
[2]   Determination of rare earth elements in wine by inductively coupled plasma mass spectrometry using a microconcentric nebulizer [J].
Augagneur, S ;
Medina, B ;
Szpunar, J ;
Lobinski, R .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1996, 11 (09) :713-721
[3]   Recent trends in the instrumental analysis of rare earth elements in geological and industrial materials [J].
Balaram, V .
TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 1996, 15 (09) :475-486
[4]   COMPARITIVE STUDY OF THE SAMPLE DECOMPOSITION PROCEDURES IN THE DETERMINATION OF TRACE AND RARE-EARTH ELEMENTS IN ANORTHOSITES AND RELATED ROCKS BY ICP-MS [J].
BALARAM, V ;
RAMESH, SL ;
ANJAIAH, KV .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1995, 353 (02) :176-182
[5]   Determination of rare earth elements in sixteen silicate reference samples by ICP-MS after Tm addition and ion exchange separation [J].
Barrat, JA ;
Keller, F ;
Amosse, J ;
Taylor, RN ;
Nesbitt, RW ;
Hirata, T .
GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS, 1996, 20 (01) :133-139
[6]  
BETTINELLI M, 1995, ATOM SPECTROSC, V16, P133
[7]   A CRITICAL-REVIEW OF INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY FOR GEOANALYSIS, GEOCHEMISTRY, AND HYDROLOGY .1. ANALYTICAL PERFORMANCE [J].
BRENNER, IB ;
TAYLOR, HE .
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY, 1992, 23 (05) :355-367
[8]   Determination of ultratrace rare earth elements in tea by inductively coupled plasma mass spectrometry with microwave digestion and AG50W-x8 cation exchange chromatography [J].
Cao, XD ;
Zhao, GW ;
Yin, M ;
Li, JX .
ANALYST, 1998, 123 (05) :1115-1119
[9]  
Chen ZZ, 1996, MICROW OPT TECHN LET, V13, P259, DOI 10.1002/(SICI)1098-2760(19961205)13:5<259::AID-MOP5>3.0.CO
[10]  
2-F