| 大气浓度下N2O、CH4和CO2中氮、碳和氧稳定同位素比值的质谱测定 |
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| 引用本文： | 曹亚澄,孙国庆,韩勇,孙德玲,王曦.大气浓度下N2O、CH4和CO2中氮、碳和氧稳定同位素比值的质谱测定[J].土壤学报,2008,45(2):249-258. |
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| 作者姓名： | 曹亚澄 孙国庆 韩勇 孙德玲 王曦 |
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| 作者单位： | 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008 |
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| 摘 要： | 利用一种带全自动预GC浓缩接口(PreCon)的同位素质谱计,可以高精度地测定大气浓度下N2O、CH4或CO2中的碳、氮、氧稳定性同位素比值。本文就采样、浓缩和质谱测定技术进行了一系列方法试验,测得的结果准确可靠,证实方法是可行的。其可应用于空气质量监测、以及大气化学、植物的呼吸作用和土壤气体发生的研究。
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| 关 键 词： | 温室气体 稳定同位素比值 质谱分析 |
| 收稿时间： | 2007/4/25 0:00:00 |
| 修稿时间： | 2007年4月25日 |
DETERMINATION OF NITROGEN, CARBON AND OXYGEN STABLE ISOTOPE RATIOS IN N2O, CH4, AND CO2 AT NATURAL ABUNDANCE LEVELS BY MASS SPECTROMETER |
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| Cao Yacheng,Sun Guoqing,Han Yong,Sun Deling and Wang Xi.DETERMINATION OF NITROGEN, CARBON AND OXYGEN STABLE ISOTOPE RATIOS IN N2O, CH4, AND CO2 AT NATURAL ABUNDANCE LEVELS BY MASS SPECTROMETER[J].Acta Pedologica Sinica,2008,45(2):249-258. |
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| Authors: | Cao Yacheng Sun Guoqing Han Yong Sun Deling and Wang Xi |
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| Institution: | Cao Yacheng Sun Guoqing Han Yong Sun Deling Wang Xi(State Key Laboratory of Soil , Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China) |
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| Abstract: | The increasing effect of greenhouse gases is arousing more and more concern of the people in the world and soil as both a source and a sink of these trace gases has been studied.Accurate determination of stable isotope composition of these trace gases will help people trace their sources and find out their release patterns.Isotopic mass spectrometers with a fully automated interface for pre-GC concentration(PreCon)of trace gases can be used with high precision to determine stable isotope ratios of carbon,ni... |
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| Keywords: | Greenhouse gas Stable isotope ratio Mass spectrometer |
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