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- Hiyagon Hajime
- Geophysical Institute, University of Tokyo
書誌事項
- タイトル別名
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- Neon Isotope Measurement in the Presenc
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抄録
Air standard neon (3.7×10-9 cm3 STP or 1.7×10-13 mol of Ne) was repeatedly analyzed with a sector type mass spectrometer VG5400 under various partial pressures of helium with the 4He/20Ne ratio from 0.24 to 27500 (or total pressure in the mass spectrometer, P(MS) from 1×10-7 Pa to 4.3×10-4 Pa by ion gauge reading). The measured 20Ne/22Ne ratios were kept almost constant when 4He/20Ne 400 or P(MS) 7×10-6 Pa (by ion gauge reading), but increased by up to a factor of ~3% at higher partial pressure of helium. The present result demonstrates the importance of He-Ne separation for a precise measurement of neon isotopic ratios in samples with high He/Ne ratios, such as MORB (Mid Oceanic Ridge Basalt) glasses.
収録刊行物
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- 質量分析
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質量分析 37 (6), 325-330, 1989
一般社団法人 日本質量分析学会
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詳細情報 詳細情報について
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- CRID
- 1390282681470358528
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- NII論文ID
- 130000258772
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- NII書誌ID
- AN0010555X
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- ISSN
- 05428645
- 18804225
- 18843271
- 13408097
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- NDL書誌ID
- 3649423
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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