First mass spectrometric measurements of atmospheric ions at ground level
First mass spectrometric measurements of atmospheric ions at ground level
复制标题
首次对地面大气离子进行质谱测量
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
F. Eisele
中科院分区：
文献类型：
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作者：
M. D. Perkins;F. Eisele
在佐治亚州的萨佩洛岛和科罗拉多州的埃文斯山，对流层中自然产生的正离子和负离子已被大量确定。这些测量是在各种天气条件下在地面上进行的。在实验过程中，正离子的质量分别为54,60,80,94amu。质量54amu被认为是NH4 +·2（H2O）。在负谱中，离子的质量分别为62和125 AMU，被认为是NO3−和NO3−·（HNO3）。还观察到几个离子似乎是上述离子的H2O簇。除了1982年在城市环境中在有限质量范围内进行的测量外，这些是对流层中自然产生的离子的质量同一性（1-AMU分辨率）的首次测量（Eisele, 1983）。研究人员还研究了人工产生的离子，并将其与寿命更长的天然离子进行了比较。
Naturally occurring positive and negative ions in the troposphere have been mass identified at Sapelo Island, Georgia, and Mt. Evans, Colorado. These measurements were made at ground level under a variety of weather conditions. Over the course of the experiment, positive ions were seen at masses 54, 60, 80, and 94 AMU. Mass 54 AMU is believed to be NH4 + · 2(H2O). In the negative spectrum, ions were observed at masses 62 and 125 AMU and are believed to be NO3− and NO3− · (HNO3). Several ions that appear to be H2O clusters of the above ions were also observed. These are the first measurements of the mass identity (1-AMU resolution) of naturally occurring ions in the troposphere with the exception of a previous measurement made in 1982 over a limited mass range in an urban environment (Eisele, 1983). Ions that were artificially produced were also studied and compared to the much longer lived natural ions.