Analytical note of stable nitrogen isotopic measurements with MAT-252 mass spectrometer at Dating and Materials Research Center, Nagoya University
Bibliographic Information
- Other Title
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- 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
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Abstract
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.
Journal
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- 名古屋大学加速器質量分析計業績報告書
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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
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Details 詳細情報について
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- CRID
- 1390572174357949056
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- NII Article ID
- 110001136075
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- NII Book ID
- AN10305282
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- HANDLE
- 2237/13419
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- CiNii Articles
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- Abstract License Flag
- Allowed