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Title Transcription
チュウセイシ ホウシャカ ブンセキヨウ シリョウ ノ フンサイ ニ サイシテ コンニュウ スル ゲンソ ト ソノ リョウ ニツイテ
Title Alternative (English)
Evaluation of contamination effects during crushing powder samples for neutron activation analysis
File
language
jpn
Author
Miyake, Yasuyuki
Musashino, Makoto
Description
Maximum contamination levels for INAA (instrumental neutron activation analysis) elements during crushing samples were evaluated. Four clear quartz crystals were crushed using variable combinations of steel, agate and tungsten carbide equipments, which are hand-operated barrels, a moter-driven mill and a centrifugal ball mill.
From the steel barrel, Fe and Co were introduced. From the agate mill, no INAA elements was detected to have contaminated. From the tungsten carbide mills, W, Ta, Co and Sc were introduced, and minor afnount of Cr was also detected to have introduced from the ball mill.
Supposing from the ratios among each of contaminants from tungsten carbide mills, and the usual contamination levels of W in natural igneous rocks, usage of tungsten carbide mills should be restricted only to crush the samples which originally contain sufficient amounts of such element that are possibly introduced, to an coarse grain size (Max. 1 mm) by rapping chips by hand.
Journal Title
Geological reports of Shimane University
Volume
10
Start Page
31
End Page
34
ISSN
0287816X
Published Date
1991-07-30
NCID
AN00054980
DOI(SelfDOI)
Publisher
島根大学理学部地質学教室
Publisher Aalternative
Department of Geology, Faculty of Science, Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Science and Engineering
Remark
1-11 / 1982-1992
島田�郎教授退官記念論誌集
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