光谱学与光谱分析 |
|
|
|
|
|
Research on Detecting Trace Formaldehyde Gas by the Multi-Wavelengths Characteristics Method |
LI Yang-jun, WANG Gao |
National Key Laboratory for Electronic Measurement Technology in North University of China, Taiyuan 030051,China |
|
|
Abstract In order to overcome the slow speed of detecting trace formaldehyde in the sample gas, material consumption by chemical reaction, and the limitations of the sampling area in the detection of trace formaldehyde, a multi-wavelength characteristics method for getting the exact concentration of formaldehyde quickly was designed. According to the spectrum characteristics of formaldehyde and the main interfering gases the system chose multiple wavelengths with the minimum degree of coherence (the number of characteristic wavelengths were selected to be 3, 4 and 5), in conjunction with the corresponding groups of narrow-band filters. With the infrared light of the light source through the chamber windows and narrow-band filters, the infrared light was collected by the PCI-2TE-13 infrared detectors, and the concentration of formaldehyde in the sample gas was calculated by the characteristics spectrum absorption algorithm. In the experiments, the system analyzed and calculated the concentration of formaldehyde in four gas samples collected in the newly renovated house, building materials market, supermarkets and outdoor parks. Experimental results of the system and test results of ARCSpectro-AMIR infrared spectrometer were compared, the results show that test data above 10 mg·m-3 were close to true value by the multi-wavelengths characteristics method, and the average error is less than 5%. So the system meets the requirements of practical applications, and it has the advantages of real-time detection, not poisoning so on.
|
Received: 2011-03-11
Accepted: 2011-06-29
|
|
Corresponding Authors:
LI Yang-jun
E-mail: liyangjunnuc@163.com; gxx@nuc.edu.cn
|
|
[1] WANG Shao-lin, XIE Jun, CAO Kai-fa(汪少林, 谢 军, 曹开法). Chinese Journal of Lasers(中国激光),2008, 5(22): 98. [2] LIU Wen-bin, XIE Pin-hua, SI Fu-qi(刘文彬, 谢品华, 司福祺). Optical Technique(光学技术),2008, 1(36): 112. [3] Angelmahr M, Miklós A,Hess P. Applied Physics B: Lasers and Optics, 2006, 85(2-3): 285. [4] ZHU Yan-wu, LIU Wen-qing, XIE Pin-hua(朱燕舞, 刘文清, 谢品华). Acta Photonica Sinica(光子学报),2009, 8(34): 357. [5] JIANG Fei-hong(江飞虹). Journal of Applied Optics(应用光学),2009, 30(4): 687. [6] SI Fu-qi, LIU Jian-guo, XIE Pin-hua(司福祺, 刘建国, 谢品华). Acta Physica Sinica(物理学报),2006, 55(6): 3155. [7] PENG Fu-min, XIE Pin-hua, ZHANG Ying-hua(彭夫敏, 谢品华, 张英华). Acta Optica Sinica(光学学报),2008,28(9): 1643. [8] ZHOU Bin, HAO Nan,CHEN Li-min(周 斌, 郝 楠, 陈立民). Acta Physica Sinica(物理学报),2005, 9(1): 23. [9] Curti, Matera, Tosi-Beleffi. IEEE: Transparent Optical Networks International Conferences, 2002, 1(1): 66. [10] YANG Jian-lei, ZHU Tuo, WU Hao(杨建磊, 朱 拓, 武 浩). Journal of Optoelectronics·Laser(光电子·激光),2009, 20(4): 494. [11] Civis Cihelka J, Matulkova S I. ICTON Mediterranean Winter Conference,2007, 1(1): 1. [12] Homayon Ahmad Panahi, Amir Abdollah Mehrdad Sharif, Mehrnaz Bigonah. Korean Journal of Chemical Engineering. 2009, 26(6): 1723. [13] Michael Staak, Edward W Gash, Dean S Venables. Journal of Molecular Spectroscopy,2005, 229(1): 115. |
[1] |
ZHENG Hong-quan, DAI Jing-min*. Research Development of the Application of Photoacoustic Spectroscopy in Measurement of Trace Gas Concentration[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 1-14. |
[2] |
ZHENG Zhi-jie1, LIN Zhen-heng1, 2*, XIE Hai-he2, NIE Yong-zhong3. The Method of Terahertz Spectral Classification and Identification for Engineering Plastics Based on Convolutional Neural Network[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1387-1393. |
[3] |
ZONG Zhi-fang1, XU Wei-cheng2, CHEN De-peng1*, TANG Gang1, ZHOU Xiao-hui1, DONG Wei1, WU Yu-xi2. Preparation Mechanism of Decylic Acid-Palmitic Acid/SiO2@TiO2
Photocatalytic Phase Change Microcapsules Based on
Multiple Spectrum Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1306-1313. |
[4] |
LIU Guo-hua, LI Qi-hua*, OU Jin-ping, XU Heng, ZHU Peng-cheng, LIU Hao-ran. Passive Spectrum Measurement of HCHO in Chongqing Area Based on MAX-DOAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(01): 243-247. |
[5] |
CHEN Dong-yang1, ZHOU Li1*, YANG Fu-mo1, WANG Wei-gang2, GE Mao-fa2. Application Progress of Cavity-Enhanced Absorption Spectroscopy (CEAS) in Atmospheric Environment Research[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(09): 2688-2695. |
[6] |
HE Qi-xin, LI Jia-kun, FENG Qi-bo*. Development of a Mid-Infrared Cavity Enhanced Formaldehyde Detection System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(07): 2077-2081. |
[7] |
ZHANG Zhong-xiong1, 2, 3, ZHANG Dong-li4, TIAN Shi-jie1, 2, 3, FANG Shi-yan1, 2, 3, ZHAO Yan-ru1, 2, 3*, ZHAO Juan1, 2, 3, HU Jin1, 2, 3*. Research Progress of Terahertz Spectroscopy Technique in Food Adulteration Detection[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(05): 1379-1386. |
[8] |
YANG Chuan-xiao, GONG Wei-bin, TANG Fan, SUN Xiang-ying. Determination of Sodium Hexametaphosphate by Ratiometric Fluorescence Method Based on Formaldehyde Functionalized Polyethyleneimine/Eosin Y System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 454-459. |
[9] |
CHEN Yi-fan, LI Yun-jing, PENG Miao-miao, YANG Chun-yong*, HOU Jin, CHEN Shao-ping. Improvements of VIS-NIR Spectroscopy Model in the Prediction of TVB-N Using MIV Wavelength Selection[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(05): 1413-1419. |
[10] |
ZHANG Hao1,2, GAO Qing1, HAN Xiang-xiang1, RUAN Gao-yang1, LIU Xiu-yu1. Mechanism Analysis of Formaldehyde Degradation by Hot Braised Slag Modified Activated Carbon Based on XRF and XRD[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(05): 1447-1451. |
[11] |
ZHANG Hao1, 2, 3, ZHANG Lei3, LONG Hong-ming1, 2*. Spectroscopic Analysis of Preparation of Ecological Activated Carbon Based on Electric Furnace Slag Ultrafine Powder Modified Biomass Waste Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(03): 861-866. |
[12] |
ZHANG Hu, HE Jian-ping*, LINYANG Sheng-lan. Three-Dimensional Arc Spectrum and Anti-Interference Decoupling in Micro Plasma Arc Welding[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(01): 48-53. |
[13] |
LI Biao1, 2, DONG Lei1, 2, WU Hong-peng1, 2*. Impact of Resonance Frequency of Quartz Tuning Fork on QEPAS-Based Sensors[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(10): 3056-3060. |
[14] |
ZHOU Dan-lei1, 2. Sulfhydryl Modification and Spectral Measurement of Cytoglobin[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(09): 2868-2872. |
[15] |
WEI Min-hong1,2, LIU Cheng2*, LI Su-wen1, CHEN Zheng-hui1, MOU Fu-sheng1. Measurement of Tropospheric HCHO by MAX-DOAS Based on QDOAS[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(08): 2332-2336. |
|
|
|
|