| 一种可能形成POPs途径的初探-气相苯的氯化反应 |
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| 引用本文： | 白云鹏,石磊,刘淑莹,周慧,崔勐,邢俊鹏,杨向光. 一种可能形成POPs途径的初探-气相苯的氯化反应[J]. 应用化学, 2010, 27(8): 931-934. DOI: 10.3724/SP.J.1095.2010.90764 |
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| 作者姓名： | 白云鹏 石磊 刘淑莹 周慧 崔勐 邢俊鹏 杨向光 |
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| 作者单位： | (1.中国科学院长春应用化学研究所 长春 130022；;2.吉林大学公共卫生学院 长春；3.中国科学院研究生院 北京) |
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| 基金项目： | 国家"九七三"计划前期研究专项项目，吉林省科技发展计划项目基金 |
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| 摘 要： | 用串联质谱碰撞室模拟大气环境研究了持久性有机污染物(POPs)形成过程，实验发现，经离子-分子反应可以生成氯苯类化合物。 以中性苯与酰氯为反应物在离子源进行反应，在苯含量为4×10-3Pa、酰氯含量为4×10-4Pa时，氯苯的生成量为5×10-8Pa，远远高于背底浓度5×10-9Pa。对氯苯类化合物的形成，大气环境明显优于质谱环境，实验结果表明，在大气中经离子分子反应形成POPs是可能的。
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| 关 键 词： | POPs 氯苯 气相离子-分子反应 大气污染 |
| 收稿时间： | 2009-11-19 |
| 修稿时间： | 2010-03-24 |
A Preliminary Approach to Mimic the Formation of POPs in the Atmosphere:Chlorination of Benzene in the Gas Phase |
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| BAI Yun-Peng,SHI Lei,LIU Shu-Ying,ZHOU Hui,CUI Meng,XING Jun-Peng,YANG Xiang-Guang. A Preliminary Approach to Mimic the Formation of POPs in the Atmosphere:Chlorination of Benzene in the Gas Phase[J]. Chinese Journal of Applied Chemistry, 2010, 27(8): 931-934. DOI: 10.3724/SP.J.1095.2010.90764 |
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| Authors: | BAI Yun-Peng SHI Lei LIU Shu-Ying ZHOU Hui CUI Meng XING Jun-Peng YANG Xiang-Guang |
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| Affiliation: | (1.Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022;2.School of Public Health,Jilin University,Changchun;3.Graduate School of Chinese Academy of Sciences,Beijing) |
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| Abstract: | The process of persistent organic pollutants(POPs) formation was studied by using the collision chamber of tandem mass spectrometer instead of atmospheric environment. It is found that chlorobenzenes can be formed through gas phase ion-molecule reaction in the collision chamber. And the formation of chlorobenzenes in the ion source of the mass spectrometer is also observed. When benzene content is 4×10-3 Pa and acetyl chloride content is 4×10-4 Pa, the chlorobenzene content reaches 5×10-8 Pa，while the background of chlorobenzene is only 5×10-9Pa. So it is possible that the formation of chlorobenzene by gas phase ion molecule reactions, because chlorobenzene is formed easier in atmosphere than that in the collision chamber. |
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| Keywords: | POPs |
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