本文用速率方程理论导出了用激光诱导荧光法探测OH自由基时激光本身产生的自由基浓度，讨论了该浓度与气压的关系，并对低气压测量时，荧光强度的变化进行了定性的研究，结论与他人的实验结果是一致的。
This paper deduced the density of hydroxyl radical from ozone photolysis in the experiment of laser induced fluorescence. The relation of density with atmospheric pressure and the fluorescence intense of hydroxyl radical was also calculated and discussed. The conclusion is coincidence with the result of other's experiment.
参考文献
| [1] | Mount G H, Williams E J. An overview of the tropospheric OH photochemistry experiment [J]. Fritz peak/Idaho hill, Colorado, fall 1993. J. Geophysic. Res, 1997,102(D5): 6171～6186 |
| [2] | Mather J H, Stevens P S, Brune W H. OH and HO2 measurements using laser-induced fluorescence [J]. J. Geophys. Res, 1997, 102(D5 ): 6427～6436 |
| [3] | Chan C Y, Hard T M, Mehrabzadeh A A et al. Third-generation FAGE instrument for tropospheric hydroxyl radical measurement [J]. J. Geophys. Res., 1990, 95(Dll): 18569～18576 |
| [4] | Cleveland C B, Wiesenfeld J R. Nascent product population distribution in the reaction 16O(1D2)+H218O→16OH+18OH [J]. J. Chem. Phys., 1992, 96(1): 248～255 |
| [5] | Wang C C, Daus L I, Selzer P M. Improved airborn measurements of OH in the atmosphere using the technique of laser-induced fluorescence [J]. J. Geophysic. Res., 1981, 86(C2): 1181～1186 |
| [6] | German K R. Collision and quenching cross sections in the A2∑+ state of OH and OD [J]. J. Chem. Phys., 1976,64:4065 |
| [7] | Lengel R K, Crosley D R. Energy transfer in A2∑+OH, 1, Rotation [J]. J. Chem. Phys., 1977, 67:2085～2101 |
| [8] | Molina L T, Molina M J. Absolute absorption cross section of ozone in the 185 to 350 nm wavelength range [J]. J. Geophys. Res., 1986, 91:14501～14508 |
| [9] | German K R. Direct measurement of the radiative lifetimes of the A2 ∑+ (v＇ = 0) states of OH and OD; Radiative and predissociative lifetimes of the v＇=0, 1, and 2 levels of the A2∑+ state of OH and OD [J]. J Chem. Phys.,1975, 62: 2584; 1975, 63: 5252, 1975 |
| [10] | Dorn H P, Neuroth R, Hofzumahaus A. Investigation of OH absorption cross sections of rotational transitions in the A2∑+,v＇ = 0 ← X2∏, v" = 0 band under atmospheric condition: Implications for tropospheric long-path absorption measurements [J]. J. Geophysic. Rev., 1995, 100(D4): 7397～7409 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%