Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2

doi:10.1021/acs.analchem.1c05484

HFCAS OpenIR

	Amplitude-Modulated Cavity-Enhanced Absorption Spectroscopy with Phase-Sensitive Detection: A New Approach Applied to the Fast and Sensitive Detection of NO2
	Zhou, Jiacheng 1,2; Zhao, Weixiong1 ; Zhang, Yang1 ; Fang, Bo 1; Cheng, Feihu 1; Xu, Xuezhe1 ; Ni, Shichuan 1,2; Zhang, Weijun1,2 ; Ye, Chunxiang 3; Chen, Weidong4 ; Venables, Dean S.5,6
	2022-02-10
发表期刊	ANALYTICAL CHEMISTRY
ISSN	0003-2700
通讯作者	Zhao, Weixiong(wxzhao@aiofm.ac.cn) ; Zhang, Weijun(wjzhang@aiofm.ac.cn)
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.
DOI	10.1021/acs.analchem.1c05484
关键词[WOS]	RING-DOWN SPECTROSCOPY ; SPECTROMETER TD-CRDS ; CHEMICAL AMPLIFICATION ; NITROGEN-DIOXIDE ; PEROXY-RADICALS ; MIXING RATIOS ; AMBIENT NO2 ; REAL-TIME ; IN-SITU ; CHEMISTRY
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000758067100001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/127949
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).