| 正热电离质谱同时测定硝酸盐中氮和氧同位素组成 |
| |
| 引用本文： | 尹德忠,肖应凯,逯海.正热电离质谱同时测定硝酸盐中氮和氧同位素组成[J].盐湖研究,2001,9(3):17-22. |
| |
| 作者姓名： | 尹德忠 肖应凯 逯海 |
| |
| 作者单位： | 中国科学院青海盐湖研究所 |
| |
| 基金项目： | 国家自然科学基金(29775028) |
| |
| 摘 要： | 初步研究了一种硝酸盐中氮和氧同位素质谱测定的新方法。该法利用石墨的非还原热离子发射特性 ,建立了以测定 Cs2 NO2 + 离子的正热电离质谱测定硝酸盐中氮和氧同位素组成的过程 ,对方法的可行性、特点和存在的问题进行了讨论 ,并对几种测定氮和氧同位素的方法进行了比较。运用正热电离质谱法对几种不同厂家生产的硝酸盐试剂的氮和氧同位素组成进行了测定 ,发现氮和氧同位素组成存在较大的差异
|
| 关 键 词： | 氮 氧 硝酸盐 正热电离质谱 同位素测定 |
| 文章编号： | 1008-858(2001)03-0017-06 |
| 修稿时间： | 2000年10月31 |
A Preliminary Investigation on Isotopic Determination of Nand O in Nitrate by
Positive Thermal Ionization Mass Spectrometry |
| |
| YIN De zhong,XIAO Ying kai,LU Hai.A Preliminary Investigation on Isotopic Determination of Nand O in Nitrate by
Positive Thermal Ionization Mass Spectrometry[J].Journal of Salt Lake Research,2001,9(3):17-22. |
| |
| Authors: | YIN De zhong XIAO Ying kai LU Hai |
| |
| Institution: | YIN De zhong,XIAO Ying kai *,LU Hai |
| |
| Abstract: | The positive ionization mass spectrometry Procedure based on Cs 2NO 2 ion for isotopic measurements of N and O in nitrate is first reported here.The addition of graphite onto the filament loading significantly enhances Cs 2NO 2 ion emission from CsNO 3.The reliability and peculiarity of this procedure,as well as factors affecting the measurement precision were investigated preliminarily.The isotopic compositions of N and O in several nitrate reagents from different sources are determined and a significant diversity in isotopic compositions of N and O is observed. |
| |
| Keywords: | Nitrogen Oxygen Positive thermal ionization mass spectrometry Isotopic determination Nitrate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《盐湖研究》浏览原始摘要信息 |
| 点击此处可从《盐湖研究》下载免费的PDF全文 |
