大气与环境光学学报 ›› 2024, Vol. 19 ›› Issue (3): 265-291.doi: 10.3969/j.issn.1673-6141.2024.03.001

• 综述 •    下一篇

二氧化氮和有机硝酸酯测量技术研究进展

童金钊 1,2, 林川 2, 胡仁志 2*, 谢品华 1,2,3,4*, 吴涛 2, 王家伟 1,2, 陈亮 1,2   

  1. 1 中国科学技术大学环境科学与光电技术学院, 安徽 合肥 230026; 2 中国科学院合肥物质科学研究院安徽光学精密机械研究所, 中国科学院环境光学与技术重点实验室, 安徽 合肥 230031; 3 中国科学院区域大气环境研究卓越创新中心, 福建 厦门 361000; 4 中国科学院大学, 北京 100049
  • 收稿日期:2022-04-08 修回日期:2022-05-13 出版日期:2024-05-28 发布日期:2024-06-11
  • 通讯作者: E-mail: rzhu@aiofm.ac.cn; phxie@aiofm.ac.cn E-mail:rzhu@aiofm.ac.cn
  • 作者简介:童金钊 (1996- ), 安徽合肥人, 博士研究生, 主要从事环境光学方面的研究。 E-mail: jztong@aiofm.ac.cn
  • 基金资助:
    国家自然科学基金 (42030609, 91644107), 安徽省自然科学基金 (2008085J20), 国家重点研发计划 (2017YFC0209403)

Progress of detection technology of nitrogen dioxide and organic nitrates

TONG Jinzhao 1, 2, LIN Chuan 2, HU Renzhi 2*, XIE Pinhua 1, 2, 3, 4*, WU Tao 2, WANG Jiawei 1, 2, CHEN Liang 1, 2   

  1. 1 School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China; 2 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 3 Innovation Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361000, China; 4 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-04-08 Revised:2022-05-13 Online:2024-05-28 Published:2024-06-11
  • Supported by:
    National Natural Science Foundation of China;the National Key Research and Development Program of China

摘要: 二氧化氮和有机硝酸酯均是大气中非常重要的痕量气体。二氧化氮的浓度是衡量大气污染程度最重要的指 标之一, 同时, 二氧化氮是对流层臭氧的主要来源, 也是导致光化学烟雾和酸雨的重要前体物; 大气中的有机硝酸酯 具有低温稳定、高温易分解的特性, 因此是二氧化氮的潜在源, 并且对臭氧的全球分布有一定影响。因此, 准确获得 环境大气二氧化氮和有机硝酸酯浓度对于研究大气化学过程具有重要意义。早在20 世纪五、六十年代, 化学发光技 术和分光光度技术就被用于环境大气二氧化氮的测量, 随着技术的发展, 差分吸收光谱技术、激光诱导荧光技术、可 调谐二极管激光吸收光谱技术、腔衰减相移光谱技术、腔衰荡吸收光谱技术以及腔增强吸收光谱技术等纷纷被用于测 量各种环境下的二氧化氮含量。对大气有机硝酸酯的准确测量在氮循环研究方面具有重要的意义。当前, 有机硝酸 酯的主要测量技术有气相色谱电子捕获检测以及通过热解转化为二氧化氮进行间接测量等方式。综述了国内外对环 境中二氧化氮和有机硝酸酯测量技术研究现状和发展趋势, 对现有测量方法的原理和优缺点进行了详细介绍和对比, 并总结了各个研究方法在外场观测中的应用。

关键词: 二氧化氮, 有机硝酸酯, 测量技术, 大气化学

Abstract: Both nitrogen dioxide (NO2) and organic nitrates (ONs) are very important trace gases in the atmosphere. The concentration of NO2 is one of the most important indicators to assess the degree of air pollution. In addition, NO2 is the main source of tropospheric ozone and a significant precursor of photochemical smog and acid rain. Organic nitrates in the atmosphere are stable at low temperature and easy to decompose at high temperature, making them a potential source of NO2, and in other hand, they also have a certain impact on the global distribution of O3. Therefore, accurately obtaining the concentration of NO2 and ONs in the atmosphere is of great significance for studying atmospheric chemical processes. As early as the 1950s and 1960s, chemiluminescence and spectrophotometric techniques were used to measure NO2 in the ambient atmosphere. With the development of science and technology, differential optical absorption spectroscopy, laser induced fluorescence spectroscopy, tunable diode laser absorption spectroscopy, cavity attenuated phase shift spectroscopy, cavity ring down spectroscopy, and cavity enhanced absorption spectroscopy have been used to measure NO2 in various environments. Accurate measurement of ONs is of great importance in nitrogen cycle research. At present, the main measurement techniques of ONs include gas chromatography with electron capture detection and indirect measurements through pyrolysis conversion of ONs to NO2. The research status and development tendency of NO2 and ONs detection technologies in the environment both at home and abroad are reviewed, the principles, advantages and disadvantages of existing measurement methods are introduced and compared in detail, and the applications of various research methods in field observations are summarized.

Key words: nitrogen dioxide, organic nitrates, measurement technology, atmospheric chemistry

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