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Determination of 226Ra in surface waters using high-resolution inductively coupled plasma mass spectrometry after selective extraction
https://repo.qst.go.jp/records/68352
https://repo.qst.go.jp/records/68352b5d1e357-c2c0-4866-9632-e5b2134d00d0
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-05-29 | |||||
| タイトル | ||||||
| タイトル | Determination of 226Ra in surface waters using high-resolution inductively coupled plasma mass spectrometry after selective extraction | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Tolmachev, Sergei
× Tolmachev, Sergei× Tagami, Keiko× Uchida, Shigeo× Ｔｏｌｍａｃｈｅｖ Ｓｅｒｇｅｉ× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Radium-226 (226Ra, T1/2: ca. 1600 y) is a naturally occurring radioisotope belonging to the 238U decay series. It also is present in various radioactive wastes associated with past uranium processing. Due to its high specific activity (3.7x10e10 Bq g-1) and long biological half-life in bones (16400 y), 226Ra draws much attention as one of the most toxic natural radionuclide. 226Ra enters the human body through food and drinking water. For these reasons, monitoring of 226Ra in environmental waters is an important task. However, determination of 226Ra in natural waters is difficult due to its low concentration, generally in order of mBq l-1, and the complexity of the sample matrix. Consequently, pre-concentration of Ra and removal of the potential interfering elements is required prior to measurement. We describe a chemical separation procedure for determination of 226Ra in natural water samples with high-resolution ICP-MS (HR-ICP-MS). The proposed procedure is focused on the application of ion exchange and extraction chromatography for selective extraction of Ra from water samples. The developed method was applied for 226Ra analysis in Japanese rivers. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 2nd International Conference on Radioactivity in the Environment | |||||
| 発表年月日 | ||||||
| 日付 | 2005-10-06 | |||||
| 日付タイプ | Issued | |||||
