On the atmospheric degradation of pyruvic acid in the gas phase
文献类型：期刊论文
| 作者 | Mellouki, A; Mu, YJ |
| 刊名 | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
 |
| 出版日期 | 2003 |
| 卷号 | 157期号:1页码:295-300 |
| 关键词 | degradation photolysis pyruvic acid |
| 英文摘要 | The pulsed laser photolysis-laser induced fluorescence (PLP-LIF) technique has been used to measure the rate constant for the gas phase reaction of OH radicals with pyruvic acid (CH3C(O)C(O)OH) in the temperature range 273-371 K. The data obtained were found to be well represented by the conventional Arrhenius expression: k(PA)=(4.9+/-1.9)x10(-14) exp[(276+/-123)/T] cm(3) molecule(-1) s(-1), and at 298 K, k(PA)=(1.2+/-0.4)x10(-13) cm(3) molecule(-1) s(-1). In addition, the UV-Vis absorption cross-sections of pyruvic acid were measured in the wavelength range 290-380 nm at 298 K; the obtained values are compared with literature ones. Using the PLP-LIF system, the photolysis of pyruvic acid was found to yield OH radicals with a quantum yield of 5+/-3% at 355 nm. Evidence was also found for the OH production from the photolysis of pyruvic acid using a set of black lamps as the light source. The data obtained confirm that the photolysis is the major gas phase atmospheric loss process of pyruvic acid. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 研究领域[WOS] | Chemistry |
| WOS记录号 | WOS:000182623100017 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23658]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Mellouki, A,Mu, YJ. On the atmospheric degradation of pyruvic acid in the gas phase[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2003,157(1):295-300. |
| APA | Mellouki, A,&Mu, YJ.(2003).On the atmospheric degradation of pyruvic acid in the gas phase.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,157(1),295-300. |
| MLA | Mellouki, A,et al."On the atmospheric degradation of pyruvic acid in the gas phase".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 157.1(2003):295-300. |
入库方式： OAI收割
来源：生态环境研究中心
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