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Low-level technetium-99 determination in soil samples by ICP-MS
https://repo.qst.go.jp/records/53660
https://repo.qst.go.jp/records/53660a70328ec-6b13-4a07-8fdc-8aedbf8f5316
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-05-29 | |||||
| タイトル | ||||||
| タイトル | Low-level technetium-99 determination in soil samples by ICP-MS | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Uchida, Shigeo
× Uchida, Shigeo× Tagami, Keiko× 内田 滋夫× 田上 恵子 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A simple separation method was developed for 99Tc in soil samples as follows. After incineration, Tc in a soil sample was volatilized in a combustion apparatus for 3 h at 1000C and trapped in deionized water. The trap solution was passed through an extraction chromatographic resin (TEVA resin, Eichrom Ind. Inc.) and the resin was washed with 2M HNO3. Technetium was eluted with 5mL of 8M HNO3 and this fraction was evaporated to dryness at <70C. The residue was dissolved in 5mL of 2% HNO3 solution and the 99Tc concentration was measured by inductively coupled plasma mass spectrometry (ICP-MS). The numbers of separation steps were less than those of acid leaching methods and the recoveries were usually higher than 60%. However, for the case of a carbonate rich soil sample, the recovery decreased remarkably because the sample matrix fixed Tc in itself during the volatilization step. The 99Tc concentrations in Japanese soils were measured in samples prepared using the method and values ranged from 0.004 - 0.11 Bq/kg. | |||||
| 書誌情報 |
Radiochemical Measurements Conference 巻 47, p. 1-5, 発行日 2001-11 |
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