期刊
ATMOSPHERIC CHEMISTRY AND PHYSICS
卷 19, 期 19, 页码 12631-12686出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/acp-19-12631-2019
关键词
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资金
- National Natural Science Foundation of China [91644106, 91744204, 4167517, 41875142, 91844301]
- Chinese Academy of Sciences international collaborative project [132744KYSB20160036]
- Guangdong Foundation for Program of Science and Technology Research [2017B030314057]
- State Key Laboratory of Organic Geochemistry [SKLOG2016-A05]
- CAS Pioneer Hundred Talents program
Hygroscopicity is one of the most important physicochemical properties of aerosol particles and also plays indispensable roles in many other scientific and technical fields. A myriad of experimental techniques, which differ in principles, configurations and cost, are available for investigating aerosol hygroscopicity under subsaturated conditions (i.e., relative humidity below 100 %). A comprehensive review of these techniques is provided in this paper, in which experimental techniques are broadly classified into four categories, according to the way samples under investigation are prepared. For each technique, we describe its operation principle and typical configuration, use representative examples reported in previous work to illustrate how this technique can help better understand aerosol hygroscopicity, and discuss its advantages and disadvantages. In addition, future directions are outlined and discussed for further technical improvement and instrumental development.
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