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Precise determination of Tellurium isotope ratios by negative thermal ionization mass spectrometry and multi collector inductively coupled mass spectrometry
https://repo.qst.go.jp/records/78029
https://repo.qst.go.jp/records/780292709c158-c855-4887-9b96-7eb0a4be3fcf
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2019-12-12 | |||||
タイトル | ||||||
タイトル | Precise determination of Tellurium isotope ratios by negative thermal ionization mass spectrometry and multi collector inductively coupled mass spectrometry | |||||
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 |
M.Rajamanickam
× M.Rajamanickam× T.Aono× S.K.Sahoo× Murugan, Rajamanickam× Aono, Tatsuo× Sahoo, Sarata |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The precise isotope measurement of Te in terrestrial and extraterrestrial material is essential to check the isotopic heterogeneities attributable to incomplete mixing of r and s-processes products. MC-ICP-MS measurement has improved in accuracy and precision compared to NTIMS due to ionization of a greater proportion of Te atoms. Therefore, in the present study, we report Te isotope composition of terrestrial standards using NTIMS and MC-ICP-MS to check the precision and reproducibility of both instruments. Especially the use of 1012 Ω resistor for 120Te isotope in MC-ICP-MS enhanced the reproducibility and increased the result of 120Te/128Te ratio by one order magnitude compare to the NTIMS data and previous studies. Thus, it illustrates that the MC-ICP-MS and NTIMS produce better precision and reproducibility for Te isotope ratio measurement. |
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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 | 32nd ISMAS Symposium on Mass Spectrometry | |||||
発表年月日 | ||||||
日付 | 2019-11-29 | |||||
日付タイプ | Issued |