Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 8, issue 11
Articles | Volume 8, issue 11
https://doi.org/10.5194/amt-8-4637-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-8-4637-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 8, issue 11
Research article
 | 
04 Nov 2015
Research article |  | 04 Nov 2015

Real-time monitoring of trace-level VOCs by an ultrasensitive lamp-based VUV photoionization mass spectrometer

W. Q. Sun, J. N. Shu, P. Zhang, Z. Li, N. N. Li, M. Liang, and B. Yang

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Short summary
A novel ultrasensitive VUV photoionization mass spectrometer is developed to monitor trace-level VOCs in real time. By employing a light baffle in the photoionizer, the background noise is efficiently suppressed and the detection limit reaches to a low pptv level. Continuous monitoring of VOCs in urban air demonstrates the strength of this instrument. This study reveals that the new technique may have the capability of ranking with the PTR-MS for field measurements.
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