光谱学与光谱分析 |
|
|
|
|
|
Study of a Laser Wavelength Correction Method Applied to the Measurement of OH Radical with Laser-Induced Fluorescence |
XING Xing-biao1, HU Ren-zhi1*, XIE Pin-hua1, 2*, CHEN Hao1, LING Liu-yi3, WANG Dan1, WU Jun2, LI Zhi-yan1 |
1. Anhui Institute of Optics and Fine Mechanics, Key Laboratory of Environmental Optics and Technology, Chinese Academy of Sciences, Hefei 230031, China 2. School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China 3. Institute of Electric and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China |
|
|
Abstract A method for dye laser wavelength correction applied for the measurement of OH radical with FAGE (Fluorescence Assay by Gas Expansion) is researched in this article. Sufficiently stable concentration of OH radical is produced with thermal dissociation of H2O by using an alumel filament and the fluorescence is excited with 282 nm laser in a low pressure cell. The fluorescence is detected with a photomultiplier and a high speed data acquisition card, while the laser light is monitored by a photodiode, and both signals are handled by a LabVIEW program for further analysis. The data acquisition card is triggered by a positive TTL pulse generated by a digital delay generator, which is triggered by a rising edge of a synchronized output pulse of the dye laser. The LabVIEW program is used to determine the location of the OH excited line according to the fluorescence intensity of OH radical when the frequency of the dye laser is scanned. By scanning dye laser wavelength range in 281.97~282.28 nm, excitation spectrum of OH radical is recorded. In order to optimize system parameters and achieve a high signal-to-noise ratio, the effects of the humidity, oxygen concentration, mass flow and pumping speed on fluorescence intensity and lifetime are studied at Q12 line and less than ±1.9% fluctuations of the fluorescence intensity is obtained. With analysis of the reaction mechanism of the thermal dissociation of H2O, it is concluded that reaction of oxygen and water is a major source of OH radical. Laser output wavelength is scanned in a small range around Q12 line to find out the exact exciting line and then correct the laser’s output, which might slightly shift due to the environmental change and leads to reduction of fluorescence intensity. The wavelength correction procedure is implemented many times and the results show that the systematic error of the instrument is less than 0.1 pm. According to the experimental results, this method meets the needs of quantitative accurate measuring tropospheric OH radical by FAGE.
|
Received: 2016-03-02
Accepted: 2016-07-19
|
|
Corresponding Authors:
HU Ren-zhi, XIE Pin-hua
E-mail: phxie@aiofm.ac.cn; rzhu@aiofm.ac.cn
|
|
[1] Stone D, Whalley L K, Heard D E, et al. Chemical Society Reviews, 2012, 41(19): 6348. [2] Dwayne E Heard. Annual Review of Physical Chemistry, 2006, 57: 191. [3] Hard T M, Obrien R J, Chan C Y, et al. Environmental Science and Technology, 1984, 18(10): 768. [4] Hard T M, Mehrabzadeh A A, Pan W H, et al. Nature, 1986, 322(6080): 617. [5] Fuchs H, Bohn B, Hofzumahaus A, et al. Atmospheric Measurement Techniques, 2011, 4(6): 1209. [6] Fuchs H, Holland F, Hofzumahaus A. Review of Scientific Instruments, 2008, 79(8): 84104. [7] Lu K D, Rohrer F, Holland F, et al. Atmospheric Chemistry and Physics, 2012, 12(3): 1541. [8] Wennberg P O, Cohen R C, Hazen N L, et al. Review of Scientific Instruments, 1994, 65(6): 1858. [9] Hofzumahaus A, Aschmutat U, Hessling M, et al. Geophysical Research Letters, 1996, 23(18): 2541. [10] David J C, Dwayne E H, Michael J P, et al. Applied Physics B, 1997, 65(375). [11] Mcgee T J, Mcilrath T J. Journal of Quantitative Spectroscopy and Radiative Transfer, 1984, 32(2): 179. [12] ZHU Guo-liang, HU Ren-zhi, XIE Pin-hua, et al(朱国梁,胡仁志,谢品华,等). Acta Physica Sinica(物理学报), 2015, 64(0807038). [13] Srinivasan N K, Michael J V. International Journal of Chemical Kinetics, 2006, 38(3): 211. [14] Fridell E, Elg A P, Rosen A, et al. Journal of Chemical Physics, 1995, 102(14): 5827. [15] Prakash S, Glumac N G, Shankar N, et al. Combustion Science and Technology, 2005, 177(4): 793. [16] Fridell E, Rosen A, Kasemo B. Langmuir, 1994, 10(3): 699. [17] Gudmundson F, Fridell E, Rosen A, et al. Journal of Physical Chemistry, 1993, 97(49): 12828. |
[1] |
LI Guo-hua1, ZHANG Zhen-rong1, YE Jing-feng1, WANG Sheng1, FANG Bo-lang1, SHAO Jun1, HU Zhi-yun1, 2. Measurement of OH Distribution in Kerosene Combustion Based on
Fluorescence Spectrum Discrimination[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(02): 401-404. |
[2] |
LI Hong, GAO Qiang, LI Xiao-feng, ZHANG Da-yuan, LI Bo*, YAO Ming-fa, LI Zhong-shan. Evaluating the Validity of 2D Images in Reflecting the 3D Structure of a Symmetrical Cone Flame Using Orthogonal Planar Laser-Induced Fluorescence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(09): 2968-2973. |
[3] |
ZHOU Meng-ran, LI Da-tong*, HU Feng, LAI Wen-hao, WANG Ya, ZHU Song. Research of the AdaBoost Arithmetic in Recognition and Classifying of Mine Water Inrush Sources Fluorescence Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2019, 39(02): 485-490. |
[4] |
FANG Xue-jing1,2,3, XIONG Wei1,3*, SHI Hai-liang1,3, LUO Hai-yan1,3, CHEN Di-hu1,3. Forward Model and Sensitivity Analysis for Limb-Scattered Radiation of Mesospheric OH Radicals Emission in Ultraviolet Band[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(10): 3278-3285. |
[5] |
DENG Lei, ZHANG Gui-xin*, LIU Cheng, XIE Hong. Measurement of the Gas Temperature in Microwave Plasma by Molecular Emission Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(02): 627-633. |
[6] |
ZHAO Xiao-tong, SUN Bing*, ZHU Xiao-mei, YAN Zhi-yu, LIU Yong-jun, LIU Hui. Characteristics of Light Emission and Radicals Formed by Microwave Discharge Electrolysis of an Aqueous Solution[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(12): 3855-3858. |
[7] |
ZHANG Hong-hai1, 2, 3, GAO Yi-bo1, 2, 3, LI Chao1, 2, 3, MA Jin-ji1, 2, 3*, FANG Xue-jing4, XIONG Wei4. Simulation of Limb Measurements for Mesospheric Hydroxyl Radical Based on SHS Detector[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(09): 2685-2691. |
[8] |
GUO He1, WANG Hui-juan1, 2*, JIA Yuan-yuan3, SUN Chen-jing1, ZHOU Guang-shun1, WU Qiang-shun1, YI Cheng-wu1. Study on Emission Spectrum of OH Radicals in a Combination System of Pulsed Discharge Plasma and Activated Carbon[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(12): 4135-4140. |
[9] |
JIANG Jian-ping, LUO Zhong-yang*, XUAN Jian-yong, ZHAO Lei, FANG Meng-xiang, GAO Xiang . Spectroscopic Diagnosis of Two-Dimensional Distribution of OH Radicals in Wire-Plate Pulsed Corona Discharge Reactor [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(10): 2680-2685. |
[10] |
YANG Chao, LI Yong-mei, ZHAO Quan-feng, GAN Xiang-kun, YAO Yao-chun* . Laser Raman Spectral Investigations of the Carbon Structure of LiFePO4/C Cathode Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(10): 2700-2704. |
[11] |
MU Tao-tao, CHEN Si-ying*, ZHANG Yin-chao, CHEN He, GUO Pan, GE Xian-ying, GAO Li-lei . Laser Induced Fluorescence Spectrum Characteristics of Common Edible Oil and Fried Cooking Oil[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(09): 2448-2450. |
[12] |
LIU Yu, LIU Wen-qing*, KAN Rui-feng, SI Fu-qi, XU Zhen-yu, HU Ren-zhi, XIE Pin-hua . Measurement of OH Radicals in Flame with XeCl Excimer Laser [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(11): 2897-2901. |
[13] |
WANG Shen-bing, LUO Zhong-yang*, ZHAO Lei, XUAN Jian-yong, JIANG Jian-ping, CEN Ke-fa . Study of a Wire-to-Plate Positive Pulsed Corona Discharge Reactor by Emission Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2896-2900. |
[14] |
ZHAO Lei, GAO Xiang*, LUO Zhong-yang, XUAN Jian-yong, JIANG Jian-ping, CEN Ke-fa . Analysis of Streamer Properties and Emission Spectroscopy of 2-D OH Distribution of Pulsed Corona Discharge [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2901-2905. |
[15] |
LIU Yu, LIU Wen-qing*, KAN Rui-feng, SI Fu-qi, XU Zhen-yu, HU Ren-zhi, XIE Pin-hua . Measurement of OH Radicals in Flame with High Resolution Differential Optical Absorption Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(10): 2659-2663. |
|
|
|
|