名古屋大学年代測定資料研究センター・MAT-252における窒素安定同位体比測定について

• 南 雅代

• Minami Masayo

• 青木 浩

• Aoki Hiroshi

• 中村 俊夫

• Nakamura Toshio

書誌事項

タイトル別名

• Analytical note of stable nitrogen isotopic measurements with MAT-252 mass spectrometer at Dating and Materials Research Center, Nagoya University

抄録

This paper provides a basic experimental information of stable nitrogen isotopic measurements with MAT-252 mass spectrometer (Finnigan MAT Ltd.) at Dating and Materials Research Center, Nagoya University, and a refining method of N_2 gas from sample gas on vacuum line. The ion output voltage from 28 collector is directly proportional to N_2 gas pressure. In case that ion output voltage from 28 collector of N_2 gas is more than 1.6V, the ratio of [29]/[28] hardly varies according to the output voltage, and the pressure effect on nitrogen isotopic ratios can be disregarded. The 28 ion output voltage of 2.5V (N_2 gas pressure around 38mb) is recommended on normal measurements. Only N_2 gas can be separated and refined from a sample gas by means of molecular sieves on vacuum line for refining CO_2. The δ^<13>C values do not change by collecting N_2.

収録刊行物

• 名古屋大学加速器質量分析計業績報告書

  名古屋大学加速器質量分析計業績報告書 9 316-323, 1998-03

  名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会

詳細情報

• CRID: 1390572174357949056
• NII論文ID: 110001136075
• NII書誌ID: AN10305282
• DOI: 10.18999/10.19999/sumrua.9.316
• HANDLE: 2237/13419
• Web Site: https://nagoya.repo.nii.ac.jp/records/11546
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可