Yan-lan Zhang, Hong-yan Wang, Dong-sheng Jiao, Yong-hong Hu. Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid[J]. Chinese Journal of Chemical Physics , 2008, 21(6): 535-540. doi: 10.1088/1674-0068/21/06/535-540
Citation: Yan-lan Zhang, Hong-yan Wang, Dong-sheng Jiao, Yong-hong Hu. Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid[J]. Chinese Journal of Chemical Physics , 2008, 21(6): 535-540. doi: 10.1088/1674-0068/21/06/535-540

Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid

doi: 10.1088/1674-0068/21/06/535-540
Funds:  This work was supported by the Program for New Century Excellent Talents in University, the Scienceand Technology Foundation for Young Scholars in Sichuan Province, and the National Natural ScienceFoundation of China (No.10774104).
  • Received Date: 2008-07-10
  • During the measurement of atmospheric nitrate radical by long-path differential optical absorption spectroscopy, water vapor strong absorption could affect the measurement of nitrate radical and detection limits of system. Under the tropospheric condition, the optical density of water vapor absorption is non-linearly dependent on column density. An effective method was developed to eliminate the effect of water vapor absorption. Reference spectra of water vapor based on the daytime atmospheric absorption spectra, when fitted together with change of cross section with water vapor column densities, gave a more accurate fitting of water vapor absorptions, thus its effect on the measurements of nitrate radical could be restricted to a minimum and detection limits of system reached 3.6 ppt. The modified method was applied during an intensive field campaign in the Pearl River Delta, China. The NO3 concentration in polluted air masses varied from 3.6 ppt to 82.5 ppt with an average level of 23.6±1.8 ppt.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(1470) PDF downloads(1365) Cited by()

Proportional views
Related

Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid

doi: 10.1088/1674-0068/21/06/535-540
Funds:  This work was supported by the Program for New Century Excellent Talents in University, the Scienceand Technology Foundation for Young Scholars in Sichuan Province, and the National Natural ScienceFoundation of China (No.10774104).

Abstract: During the measurement of atmospheric nitrate radical by long-path differential optical absorption spectroscopy, water vapor strong absorption could affect the measurement of nitrate radical and detection limits of system. Under the tropospheric condition, the optical density of water vapor absorption is non-linearly dependent on column density. An effective method was developed to eliminate the effect of water vapor absorption. Reference spectra of water vapor based on the daytime atmospheric absorption spectra, when fitted together with change of cross section with water vapor column densities, gave a more accurate fitting of water vapor absorptions, thus its effect on the measurements of nitrate radical could be restricted to a minimum and detection limits of system reached 3.6 ppt. The modified method was applied during an intensive field campaign in the Pearl River Delta, China. The NO3 concentration in polluted air masses varied from 3.6 ppt to 82.5 ppt with an average level of 23.6±1.8 ppt.

Yan-lan Zhang, Hong-yan Wang, Dong-sheng Jiao, Yong-hong Hu. Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid[J]. Chinese Journal of Chemical Physics , 2008, 21(6): 535-540. doi: 10.1088/1674-0068/21/06/535-540
Citation: Yan-lan Zhang, Hong-yan Wang, Dong-sheng Jiao, Yong-hong Hu. Density Functional Theory Study of Infrared and Ultraviolet Spectra of Urea L-Malic Acid[J]. Chinese Journal of Chemical Physics , 2008, 21(6): 535-540. doi: 10.1088/1674-0068/21/06/535-540

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return