| Title: | Detection of multiple chemicals based on external cavity quantum cascade laser spectroscopy |
| Author(s): | Sun J; Ding J; Liu N; Yang G; Li J; |
| Address: | "Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, 230601 Hefei, China. Chongqing Engineering Laboratory for Detection, Control and Integrated System, Chongqing Technology and Business University, 400067 Chongqing, China. Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, 230601 Hefei, China. Electronic address: jingsong_li@ahu.edu.cn" |
| Journal Title: | Spectrochim Acta A Mol Biomol Spectrosc |
| DOI: | 10.1016/j.saa.2017.10.059 |
| ISSN/ISBN: | 1873-3557 (Electronic) 1386-1425 (Linking) |
| Abstract: | "A laser spectroscopy system based on a broadband tunable external cavity quantum cascade laser (ECQCL) and a mini quartz crystal tuning fork (QCTF) detector was developed for standoff detection of volatile organic compounds (VOCs). The self-established spectral analysis model based on multiple algorithms for quantitative and qualitative analysis of VOC components (i.e. ethanol and acetone) was detailedly investigated in both closed cell and open path configurations. A good agreement was obtained between the experimentally observed spectra and the standard reference spectra. For open path detection of VOCs, the sensor system was demonstrated at a distance of 30m. The preliminary laboratory results show that standoff detection of VOCs at a distance of over 100m is very promising" |
| Keywords: | Ecqcl Open path Qctf VOCs detection; |
| Notes: | "PubMed-not-MEDLINESun, Juan Ding, Junya Liu, Ningwu Yang, Guangxiang Li, Jingsong eng England 2017/11/03 Spectrochim Acta A Mol Biomol Spectrosc. 2018 Feb 15; 191:532-538. doi: 10.1016/j.saa.2017.10.059. Epub 2017 Nov 5" |
