研究简报
徐晓白,R.L.Dod,张世哲,T.Novakov.用X射线光电子能谱(ESCA)和加热释气分析法(EGA)初步探讨北京大气飘尘中硫和氮等的化学状态[J].环境科学学报,1984,4(4):392-400
用X射线光电子能谱(ESCA)和加热释气分析法(EGA)初步探讨北京大气飘尘中硫和氮等的化学状态
- A PRELIMINARY STUDY OF THE CHEMICALSTATES OF NITROGEN, SULFUR ETC. IN ATMOSPHERIC PARTICULATES FROM BEIJING BY ESCA AND THERMAL EVOLVED GAS ANALYSIS
- 关键词：
- 基金项目：
- 作者
- 单位
- 徐晓白
- 中国科学院环境化学研究所
- R.L.Dod
- 美国加州大学LBL国立实验室应用科学部
- 张世哲
- 美国加州大学LBL国立实验室应用科学部
- T.Novakov
- 美国加州大学LBL国立实验室应用科学部
- 摘要：用X射线光电子能谱和加热释气分析法测定了三种北京大气飘尘中硫和氮等的主要化学状态,并结合两种不同配料蜂窝煤所得烟尘和个别煤样的电子能谱进行了初步探讨。
- Abstract：Three air particulate samples from different places in Beijing were studied by ESCA and Thermal Evolved Gas Analysis.It was found that in these samples sulfur is present mainly either in the form of sulfate or in the form of sulfide. Honeycomb briquets with different composite materials could emit smokes containing either of the two. Chemical states of nitrogen in these samples are more complex. Small amount of NO3- and/or NH4+ may be present in some samples, but the major species has been in the form of reduced nitrogen (called Nx), which have not yet been specified but showed stability during heating. Both coal and smokes from coal combustion may contain this kind of nitrogen.
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