Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 17, issue 3
Articles | Volume 17, issue 3
https://doi.org/10.5194/acp-17-2423-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-2423-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 17, issue 3
Research article
 | 
15 Feb 2017
Research article |  | 15 Feb 2017

Diffusion coefficients of organic molecules in sucrose–water solutions and comparison with Stokes–Einstein predictions

Yuri Chenyakin, Dagny A. Ullmann, Erin Evoy, Lindsay Renbaum-Wolff, Saeid Kamal, and Allan K. Bertram

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Short summary
Viscosity measurements, along with the Stokes–Einstein relation, have been used to estimate the diffusion rates of organics within SOA particles. To test the Stokes–Einstein relation, we measured the diffusion coefficients of three fluorescent organic dyes within sucrose–water solutions with varying water activity. The diffusion coefficients were measured using fluorescence recovery after photobleaching. The results should be useful for predicting the diffusion of organics with SOA particles.
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