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The Research on SO2 Stability in Gas Absorption Cell
Deng Min,Sun Min,Ma Zhijun,Shao Shisheng,Tan Kun,Zhang Yinchao,Hu Huanling
Author NameAffiliation
Deng Min National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Sun Min National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Ma Zhijun National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Shao Shisheng National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Tan Kun National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Zhang Yinchao National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Hu Huanling National Atmosphere Optics Laboratory, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Hefei 230031 
Abstract:
The SO2absorption spectrum is recorded using Xe lamp source under atmospheric conditions at ambient temperatures. The SO2concentration is retrieved to study the relation between SO2concentration and time. In this experiment, effects of temperature and the buffer gas N2are also considered. It is demonstrated that the concentration of SO2decreases in a linear relation to the time and the period of illumination may have effects on the rate of decrease. These results are applicable to SO2pollution monitoring in the atmosphere using high resolution spectrometer and differential absorption lidar.
Key words:  SO2, Ultraviolet absorption spectrum, Stability of concentration
FundProject:国家自然科学基金资助项目(59789201)
SO2在吸收池内的稳定性研究
邓敏,孙明,马志军,邵石生,谭锟,张寅超,胡欢陵
摘要:
在室温条件下,以Xe灯为光源,利用SO2的紫外吸收光谱,研究了SO2的浓度随时间连续变化规律.实验中考虑了温度和充垫气体N2对SO2的浓度变化的影响.实验结果表明:SO2的浓度基本上是随时间线性变化的;同时,SO2的浓度变化率与光照时间有关.
关键词:  SO2  紫外吸收光谱  浓度稳定性
DOI:10.1088/1674-0068/14/1/83-87
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