DICP OpenIR
Effect of atmospheric interfering absorption on measurement of BTX by DOAS
Peng, Fu-min1,2; Xie, Pin-hua1; Li, Hai-yang3; Zhang, Ying-hua1; Wang, Jun-de3; Liu, Wen-qing1; Pin-hua Xie
关键词Differential Optical Absorption Spectroscopy Btx Herzberg Band O-2 Dimer
刊名CHINESE JOURNAL OF CHEMICAL PHYSICS
2008-06-01
ISSN1674-0068
DOI10.1088/1674-0068/21/03/202-210
21期:3页:202-210
收录类别SCI
文章类型Article
部门归属1
项目归属102
产权排名3;3
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Atomic, Molecular & Chemical
研究领域[WOS]Physics
关键词[WOS]FOURIER-TRANSFORM SPECTROSCOPY ; CROSS-SECTION MEASUREMENTS ; HERZBERG-I BANDS ; AROMATIC-HYDROCARBONS ; URBAN AIR ; 295 K ; O-2 ; OXYGEN ; BENZENE ; TOLUENE
英文摘要It was reported on the elimination of interfering absorption of BTX. the absorption of O-2 includes different absorption bands, which change differently when the partial pressure of oxygen is varied. These cause the nonlinear absorption Of O-2 and the observed band shape to vary with the column density Of O-2 The absorption ratios of molecular absorption in each of the Herzberg hands and dimer absorptions, as well as the contribution to the correction error of molecular absorption, are studied based on the characteristic of these absorption bands. The optimized way, to eliminate the interfering absorption is obtained in the end and the effectiveness Of using interpolation proposed by Volkamer et al. to remove O-2 absorption is proved again. As to O-3 and SO2, the effect of the thermal effect of characteristic spectra on the elimination error of their absorption is studied. Solutions to these problems are discussed and demonstrated together with methods to optimize the interpolation of spectra. As a sample application, differential optical absorption spectroscopy (DOAS) measurements of BTX are carried out. Results show a low detection limit and the good correlation with point instruments are achieved. All these prove the feasibility of using spectral interpolation to improve the accuracy of DOAS measurements of aromatic hydrocarbons for practical purposes.
语种英语
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WOS记录号WOS:000258577500002
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/101553
专题中国科学院大连化学物理研究所
通讯作者Pin-hua Xie
作者单位1.Chinese Acad Sci, Key Lab Environm Opt & Technol, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
2.Anhui Univ, Coll Chem & Chem Engn, Hefei 230039, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Peng, Fu-min,Xie, Pin-hua,Li, Hai-yang,et al. Effect of atmospheric interfering absorption on measurement of BTX by DOAS[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2008,21(3):202-210.
APA Peng, Fu-min.,Xie, Pin-hua.,Li, Hai-yang.,Zhang, Ying-hua.,Wang, Jun-de.,...&Pin-hua Xie.(2008).Effect of atmospheric interfering absorption on measurement of BTX by DOAS.CHINESE JOURNAL OF CHEMICAL PHYSICS,21(3),202-210.
MLA Peng, Fu-min,et al."Effect of atmospheric interfering absorption on measurement of BTX by DOAS".CHINESE JOURNAL OF CHEMICAL PHYSICS 21.3(2008):202-210.
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