中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2

文献类型:期刊论文

作者Zhou, Jiacheng1,2; Zhao, Weixiong1; Zhang, Yang1; Fang, Bo1; Cheng, Feihu1; Xu, Xuezhe1; Ni, Shichuan1,2; Zhang, Weijun1,2; Ye, Chunxiang3; Chen, Weidong4
刊名ANALYTICAL CHEMISTRY
出版日期2022-02-10
ISSN号0003-2700
DOI10.1021/acs.analchem.1c05484
通讯作者Zhao, Weixiong(wxzhao@aiofm.ac.cn) ; Zhang, Weijun(wjzhang@aiofm.ac.cn)
英文摘要Accurate and sensitive measurements of NO2 play an extremely important role in atmospheric studies. Increasingly, studies require NO2 measurements with parts per trillion by volume (pptv-level) detection limits. Other desirable instrument attributes include ease of use, long-term stability, and low maintenance. In this work, we report the development of an amplitude-modulated multimode-diodelaser-based cavity-enhanced absorption spectroscopy (AM-CEAS) system operating at 406 nm that uses phase-sensitive detection for extremely sensitive NO2 detection. The laser was TTL-modulated at 35 kHz. The mirror reflectivity was determined to be 99.985% based on the ring-down time measurement. The cavity base length was 47.5 cm, giving an effective absorption pathlength of similar to 3.26 km. AM-CEAS achieved a 1 sigma detection precision of 35 pptv in a 1 s data acquisition time (4.98 x 10(-10) cm(-1)), over 4 times lower than that attained using a ring down approach and the same optical system. The AM-CEAS precision improved to 8 pptv over a data acquisition time of 30 s (1.14 x 10(-10) cm(-1)). The AM-CEAS method with the multimode diode laser integrates the advantages of high light injection efficiency like on-axis alignment cavity ring-down spectroscopy, low cavity-mode noise like off-axis alignment CEAS, and narrow-bandwidth high-sensitivity weak signal detection of modulation spectroscopy, providing a powerful, straightforward, and general method for ultrasensitive absorption and extinction measurements.
WOS关键词RING-DOWN SPECTROSCOPY ; SPECTROMETER TD-CRDS ; CHEMICAL AMPLIFICATION ; NITROGEN-DIOXIDE ; PEROXY-RADICALS ; MIXING RATIOS ; AMBIENT NO2 ; REAL-TIME ; IN-SITU ; CHEMISTRY
资助项目National Natural Science Foundation of China[42022051] ; National Natural Science Foundation of China[U21A2028] ; National Natural Science Foundation of China[41627810] ; Second Tibetan Plateau Scientific Expedition and Research program[2019QZKK0606] ; Youth Innovation Promotion Association CAS[Y202089] ; Instrument Developing Project of the Chinese Academy of Sciences[YJ-KYYQ20180049] ; HFIPS Director's Fund[YZJJ202101] ; HFIPS Director's Fund[BJPY2019B02]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000758067100001
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program ; Youth Innovation Promotion Association CAS ; Instrument Developing Project of the Chinese Academy of Sciences ; HFIPS Director's Fund
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127948]  
专题中国科学院合肥物质科学研究院
通讯作者Zhao, Weixiong; Zhang, Weijun
作者单位1.Chinese Acad Sci, Lab Atmospher Physicochem, Anhui Inst Opt & Fine Mech, HFIPS, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China
4.Univ Littoral Cote dOpale, Lab Physicochim Atmosph, F-59140 Dunkerque, France
5.Univ Coll, Sch Chem, Cork T23 XE10, Ireland
6.Univ Coll, Environm Res Inst, Cork T23 XE10, Ireland
推荐引用方式
GB/T 7714
Zhou, Jiacheng,Zhao, Weixiong,Zhang, Yang,et al. Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2[J]. ANALYTICAL CHEMISTRY,2022.
APA Zhou, Jiacheng.,Zhao, Weixiong.,Zhang, Yang.,Fang, Bo.,Cheng, Feihu.,...&Venables, Dean S..(2022).Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2.ANALYTICAL CHEMISTRY.
MLA Zhou, Jiacheng,et al."Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2".ANALYTICAL CHEMISTRY (2022).

入库方式: OAI收割

来源:合肥物质科学研究院

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