タイトルヨミ
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
タイトル別表記
Evaluation of contamination effects during crushing powder samples for neutron activation analysis
ファイル
言語
日本語
著者
三宅 康幸
武蔵野 実
内容記述(抄録等)
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.
掲載誌名
島根大学地質学研究報告
10
開始ページ
31
終了ページ
34
ISSN
0287816X
発行日
1991-07-30
NCID
AN00054980
出版者
島根大学理学部地質学教室
出版者別表記
Department of Geology, Faculty of Science, Shimane University
資料タイプ
紀要論文
部局
総合理工学部
備考
1-11 / 1982-1992
島田�郎教授退官記念論誌集