EGU2020-6306, updated on 13 Aug 2021
https://doi.org/10.5194/egusphere-egu2020-6306
EGU General Assembly 2020
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

The Measurement of Nitrophenols by Integrated Spectrum and TD-IBBCEAS

Meng Wang1, Jun Chen1, Shengrong Lou2, and Dean Venables3
Meng Wang et al.
  • 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.

Displays

Display file