|
|
|
|
|
|
Development of a Mid-Infrared Cavity Enhanced Formaldehyde Detection System |
HE Qi-xin, LI Jia-kun, FENG Qi-bo* |
MOE Key Lab of Luminescence and Optical Information, College of Science, Beijing Jiaotong University, Beijing 100044, China |
|
|
Abstract A mid-infrared formaldehyde gas detection system was developed based on the coaxial mode-locked cavity enhanced absorption spectroscopy technology. In order to realize the detection of formaldehyde, an interband cascade laser with a center emission wavelength of 3.6 μm was used as the light source, and a high-precision F-P resonator was used as the gas cell. The laser frequency was tuned by an electro-optic modulator and was locked to the cavity resonance frequency by the Pound-Drever-Hall (PDH) technology. In order to suppress the interference caused by the external environment and improve the accuracy and anti-interference of the system, a dynamic PDH locking technique was adopted. In this technique, the cavity length was modulated by a low-frequency saw-tooth signal, to realize the modulation of the cavity resonant frequency near the gas absorption peak. An appropriate scanning range should be selected to ensure the laser and the cavity keep locking during scanning. The formaldehyde concentration can be calculated by the amplitude of the cavity transmission signal. Experiments were carried out to evaluate the performance of the system. The absorption spectrum measurement experiment verified the effectiveness of the system. The system calibration experiment results show that the amplitude of the cavity transmission signal exhibits a good linear relationship with the formaldehyde concentration in the range of 0~10 mL·L-1. The Allan analysis of variance shows that the system minimum detection limit is 52.8 nL·L-1 when the integration time is 1 s which can be reduced to 3.3 nL·L-1 at an integration time of 14 s. In addition, the system sensitivity can be further improved by increasing the effective absorption path of the resonant cavity. The system has high sensitivity, fast response speed, good anti-interference and long-term stability, making it have broad application prospects in the detection of trace formaldehyde.
|
Received: 2020-07-15
Accepted: 2020-12-02
|
|
Corresponding Authors:
FENG Qi-bo
E-mail: qbfeng@bjtu.edu.cn
|
|
[1] Nielsen G D, Wolkoff P. Arch. Toxicol., 2010, 6: 423.
[2] Mclaughlin J K. International Archives of Occupational & Environmental Health, 1994, 66: 295.
[3] Li C, Dong L, Zheng C, et al. Sens. Actuators B:Chem, 2016, 232: 188.
[4] HE Qi-xin, LIU Hui-fang, LI Bin, et al(何启欣, 刘慧芳, 李 彬, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2016, 36(11): 3501.
[5] Ye W, Zheng C, Yu X, et al. Sens. Actuators B: Chem., 2011, 155: 37.
[6] Wu H, Dong L, Zheng H, et al. Nat. Commun., 2017, 8: 15331.
[7] Zheng H, Liu Y, Lin H, et al. Photoacoustics, 2020, 17: 100158.
[8] Kosterev A A, Tittel F K, Curl R F, et al. Opt. Lett., 2002, 27: 1902.
[9] Ma Y, He Y, Tong Y, et al. Opt. Lett., 2019, 44: 1904.
[10] Ma Y, He Y, Patimisco P, et al. Appl. Phys. Lett., 2020, 116: 011103.
[11] Wu H, Chen J, Liu A W, et al. Chinese J. Chem. Phys., 2020, 33: 1.
[12] Romanini D, Kachanov A A, Sadeghi N, et al. Chem. Phys. Lett., 1997, 264: 316.
[13] Zheng K, Zheng C, Ma N, et al. ACS Sensors, 2019, 4: 1899.
[14] Paul J B, Lapson L, Anderson J G. Appl. Opt., 2001, 40: 4904.
[15] Paldus B A, Kachanov A A. Can. J. Phys., 2005, 10: 975.
[16] Gherman T,Romanini D. Opt. Express, 2002, 19: 1033.
[17] He Q, Feng Q, Li J. Sensors, 2019, 19: 508.
[18] He Q, Li J, Feng Q. Infrared Phys. & Techn., 2020, 105: 103205. |
[1] |
LIU Jia, ZHENG Ya-long, WANG Cheng-bo, YIN Zuo-wei*, PAN Shao-kui. Spectra Characterization of Diaspore-Sapphire From Hotan, Xinjiang[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 176-180. |
[2] |
JIA Yu-ge1, YANG Ming-xing1, 2*, YOU Bo-ya1, YU Ke-ye1. Gemological and Spectroscopic Identification Characteristics of Frozen Jelly-Filled Turquoise and Its Raw Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2974-2982. |
[3] |
WANG Chun-hui1, 2, YANG Na-na2, 3, FANG Bo2, WEI Na-na2, ZHAO Wei-xiong2*, ZHANG Wei-jun1, 2. Frequency Locking Technology of Mid-Infrared Quantum Cascade Laser Based on Molecule Absorption[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2363-2368. |
[4] |
LIU Xian-yu1, YANG Jiu-chang1, 2, TU Cai1, XU Ya-fen1, XU Chang3, CHEN Quan-li2*. Study on Spectral Characteristics of Scheelite From Xuebaoding, Pingwu County, Sichuan Province, China[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2550-2556. |
[5] |
WEN Hui-lin1, YANG Ming-xing1, 2*, LIU Ling1. Mineralogical and Spectral Characteristics of Alunite From Xiaodonggou Turquoise Deposit, Baihe, Shaanxi[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1088-1094. |
[6] |
XU Feng-shun1, CHEN Quan-li1*, DING Wei1, WANG Hai-tao2. Study on Fluorescence Spectrometry of Natural and Organic Filling Treated Turquoise[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(09): 2918-2923. |
[7] |
HUANG Li-ying, CHEN Quan-li*, GAO Xin-xin, DU Yang, XU Feng-shun. Study on Composition and Spectral Characteristics of Turquoise Treated by “Porcelain-Added”[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2245-2250. |
[8] |
CHEN Quan-li1, DING Wei1, XU Feng-shun1, LIU Xian-yu2*, WANG Hai-tao3. Infrared Spectral Characteristics and Composition of the “Oily Turquoise” in Zhushan, Hubei[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(04): 1246-1252. |
[9] |
GUO Song-jie1,3, ZHOU Yue-ting1,3, WU Yong-qian2, ZHOU Xiao-bin1,3, TIAN Jian-fei1,3, ZHAO Gang1,3, MA Wei-guang1,3*, DONG Lei1,3, ZHANG Lei1,3, YIN Wang-bao1,3, XIAO Lian-tuan1,3, JIA Suo-tang1,3. Experimental Study on Narrowing 632.8 nm External Cavity Diode Laser Linewidth Based on Self Made Ultra-Stable F-P Cavity[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 339-344. |
[10] |
HONG Guang-lie1, LIANG Xin-dong1, 2, LIU Hao1*, ZHANG Hua-ping1, 2, SHU Rong1, 2. Detection of CO2 Average Concentration in Atmospheric Path by CW Modulated Differential Absorption Lidar[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(12): 3653-3658. |
[11] |
CHEN Quan-li1, WANG Hai-tao2*, LIU Xian-yu3, QIN Chen1, BAO De-qing1. Study on Gemology Characteristics of the Turquoise from Mongolia[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(07): 2164-2169. |
[12] |
ZHANG Nan, ZHUANG Ling-hua. Spectral Analysis and Structural Identification of Remifentanil Acid[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(07): 2059-2065. |
[13] |
ZHANG Huai-lin, WU Tao*, HE Xing-dao. Progress of Measurement of Infrared Absorption Spectroscopy Based on QCL[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(09): 2751-2757. |
[14] |
XIAO Rui-hong1, WANG Li-sheng1, CHEN Wen-jun2, SHI Guang-hai2*. Spectral Characteristics of Natural and Heated Blood-Red Ambers[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(04): 1053-1058. |
[15] |
CHEN Quan-li1, LIU Xian-yu1, 2*, JIN Wen-jing1, ZHU Wen-jing1. A Study on IR Absorption Spectroscopy and XRD Characteristics of White and Yellow Natural Turquoise Associated Minerals[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3084-3089. |
|
|
|
|