Share Email Print
cover

Proceedings Paper

Measurement of ammonia by a portable UV-DOAS gas sensor based on multi-pass cell
Author(s): Jie Wang; Pinhua Xie; Ang Li; Fuqi Si; Ke Dou; Wu Fang; Fengcheng Wu; Yu Jiang; Min Qin
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Ammonia, the third most important abundant nitrogen compound, is a primary alkaline gas in the atmosphere. It has strong absorption bands in the deep ultraviolet (DUV) spectral range and so can be reliably detected by the differential optical absorption spectroscopy (DOAS) technique. A portable UV-DOAS gas sensor based on multi-pass cell has been designed to detected trace gases, especially for ammonia, in the DUV spectral range, with good performance using a broad-band Deuterium source and high-sensitivity spectrometer. With the optical path as long as 20m, such a sensor could detected NH3 concentrations as low as 100ppb according to the result of in-situ measurement. Fast response time and low measurement error of this portable gas sensor could be competent for emergency monitoring.

Paper Details

Date Published: 9 November 2010
PDF: 10 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533B (9 November 2010); doi: 10.1117/12.870578
Show Author Affiliations
Jie Wang, Anhui Institute of Optics and Fine Mechanics (China)
Pinhua Xie, Anhui Institute of Optics and Fine Mechanics (China)
Ang Li, Anhui Institute of Optics and Fine Mechanics (China)
Fuqi Si, Anhui Institute of Optics and Fine Mechanics (China)
Ke Dou, Anhui Institute of Optics and Fine Mechanics (China)
Wu Fang, Anhui Institute of Optics and Fine Mechanics (China)
Fengcheng Wu, Anhui Institute of Optics and Fine Mechanics (China)
Yu Jiang, Anhui Institute of Optics and Fine Mechanics (China)
Min Qin, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top