The Measurement of Nitrophenols by Integrated Spectrum and TD-IBBCEAS
- 1Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China (j.chen@usst.edu.cn)
- 2State Enviromental Protection Key Laboratory of the Cause and Prevention of Urban Air Pollution Complex, Shanghai Academy of Enviromental Science, Shanghai 200233, China(lousr@saes.sh.cn)
- 3Department of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland(d.venables@ucc.ie)
Atmospheric Brown Carbon (BrC) is an important component of aerosol particles that Influences the climate through interactions with incoming solar and emitted terrestrial radiation. BrC can be generated from a variety of primary emissions (such as traffic, coal combustion, biomass burning) and secondary formation. Nitrophenols are classified as Brown Carbon due to their strong absorption in near-ultraviolet and visible regions.
A heated single path absorption spectroscopy system is been built to measure the cross section of nitrophenols. Due to its semi-volatility, the nitrophenols were introduced into the cell by N2. The cross section of nitrophenols is obtained by calculating the integrated absorption.
A Thermal Decomposition - Incoherent Broadband Cavity-Enhanced Absorption Spectroscopy (TD-IBBCEAS) system was setup for atmospheric measurement. This instrument covered the spectral region from 320 to 440nm which could contain the interested absorption of nitrophenols. A thermal decomposition device was used to heating the sample. The system was characterized based in laboratory experiment.
How to cite: Wang, M., Chen, J., Lou, S., and Venables, D.: The Measurement of Nitrophenols by Integrated Spectrum and TD-IBBCEAS, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-6306, https://doi.org/10.5194/egusphere-egu2020-6306, 2020.
