DETERMINATION OF LOW-LEVEL TC-99 IN ENVIRONMENTAL-SAMPLES BY HIGH-RESOLUTION ICP-MS

被引:19
作者
YAMAMOTO, M
SYARBAINI
KOFUJI, K
TSUMURA, A
KOMURA, K
UENO, K
ASSINDER, DJ
机构
[1] NATL INST AGROENVIRONM SCI,TSUKUBA,IBARAKI 305,JAPAN
[2] UNIV COLL N WALES,SCH OCEAN SCI,ANGLESEY LL59 5EY,GWYNEDD,WALES
来源
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1995年 / 197卷 / 01期
关键词
D O I
10.1007/BF02040230
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
An analytical method has been developed for the determination of low-level Tc-99 in environmental samples by High Resolution ICP-MS. The method consists of leaching of Tc-99 by HNO3 and separation by three different solvent extractions with 30% TOA-xylene, MEK, and cyclohexanone. Finally, purification of Tc-99 was made by using an anion exchange resin column to reduce dissolved solids content. The final solution was adjusted to 1M HNO3 for introducing into the HR-ICP-MS. The accuracy and precision of the method was confirmed to be satisfactory by applying this technique to the determination of Tc-99 in IAEA marine algae sample (AG-B-1). Measurements of Tc-99 using 0.5 - 2.5 g of sediment samples from the Irish Sea, UK, were successfully performed by the present method.
引用
收藏
页码:185 / 194
页数:10
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