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Title: A review of experimental techniques for aerosol hygroscopicity studies
Authors: Tang, MJ
Chan, CK
Li, YJ
Su, H
Ma, QX
Wu, ZJ
Zhang, GH
Wang, Z 
Ge, MF
Hu, M
He, H
Wang, XM
Issue Date: 2019
Publisher: Copernicus GmbH
Source: Atmospheric chemistry and physics, 10 Oct. 2019, v. 19, no. 19, p. 12631-12686 How to cite?
Journal: Atmospheric chemistry and physics 
Abstract: 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.
ISSN: 1680-7316
EISSN: 1680-7324
DOI: 10.5194/acp-19-12631-2019
Rights: © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License (
The following publication Tang, M., Chan, C. K., Li, Y. J., Su, H., Ma, Q., Wu, Z., Zhang, G., Wang, Z., Ge, M., Hu, M., He, H., and Wang, X.: A review of experimental techniques for aerosol hygroscopicity studies, Atmos. Chem. Phys., 19, 12631–12686 is available at
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