Development of a portable cavity-enhanced absorption spectrometer for the measurement of ambient NO3 and N2O5: experimental setup, lab characterizations, and field applications in a polluted urban environment

Wang, Haichao; Chen, Jun; Lu, Keding

doi:https://doi.org/10.5194/amt-10-1465-2017

Articles | Volume 10, issue 4

https://doi.org/10.5194/amt-10-1465-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-10-1465-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 4

Research article

|

19 Apr 2017

Research article |

| 19 Apr 2017

Development of a portable cavity-enhanced absorption spectrometer for the measurement of ambient NO₃ and N₂O₅: experimental setup, lab characterizations, and field applications in a polluted urban environment

Haichao Wang, Jun Chen, and Keding Lu

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Final revised paper (published on 19 Apr 2017)
Preprint (discussion started on 10 Oct 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review', Anonymous Referee #1, 07 Nov 2016
- AC1: 'Reply to referee 1', Keding Lu, 27 Jan 2017
RC2: 'Review of Manuscript', Anonymous Referee #2, 15 Nov 2016
- AC2: 'Reply to referee 2', Keding Lu, 27 Jan 2017

Short summary

A new incoherent broadband cavity-enhanced absorption spectrometer for ambient NO₃ and N₂O₅ detection is developed. This new instrument is featured with a mechanically aligned non-adjustable optical mounting system. Fast setup and stable running of this N₂O₅ spectrometer were successfully achieved during recent field campaigns in China due to this new feature. In addition, a dynamic reference spectrum is used for the CEAS type of instrument by NO titration for the first time.