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Accession number;99A0562720
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| Title;Quantitative Electron-Probe Microanalysis of Various Kinds of Rare-Earth Elements in Minerals. |
| Author;
NISHIDA NORIMASA
(Univ. of Tsukuba, Chem. Anal. Center)
KIMATA MITSUYOSHI
(Univ. of Tsukuba, Inst. of Geosci.)
SUGIMOTO AKANE
(Univ. of Tsukuba, Graduate School)
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Journal Title;Journal of the Mineralogical Society of Japan
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Journal Code:G0124A
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ISSN:0454-1146
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VOL.28;NO.2;PAGE.71-81(1999)
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| Figure&Table&Reference;FIG.8, TBL.3, REF.13 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Electron-probe microanalysis (EPMA) of the wavelength-dispersive (WD) type offers some advantage in each quantitative analysis of various kind of rare-earth elements in minerals with their high concentrations. Close observation on WD spectra of REE in minerals leads to a skillful selection including the favorable conditions: a suitable choice of background measurement positions, 25kV (accelerating voltage), LIF crystal, the beam size of 20.MU.m, emission current of 1*10-8A, and the ZAF corrections. This accelerating voltage is indispensable in quantitatively analyzing various kinds of REE in minerals. As tested on thortveitite, the present EPMA has proved to be correct for REE-pyrosilicates. (author abst.) |
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