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Original Articles

Enhanced Reactive Uptake of Nonanal by Acidic Aerosols in the Presence of Particle-Phase Organics

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Pages 872-883 | Received 01 Dec 2010, Accepted 21 Feb 2011, Published online: 31 Mar 2011

Figures & data

FIG. 1 The percentage of particle mass after 3 min of vapor uptake to the equilibrium mass (R 3min) against different flow rates of EDB stream for (a) oleic acid particle/butanol vapor system and (b) ammonium sulfate particle/water vapor system.

FIG. 1 The percentage of particle mass after 3 min of vapor uptake to the equilibrium mass (R 3min) against different flow rates of EDB stream for (a) oleic acid particle/butanol vapor system and (b) ammonium sulfate particle/water vapor system.

FIG. 2 The uptake kinetics of ammonium sulfate and pure SA.

FIG. 2 The uptake kinetics of ammonium sulfate and pure SA.

FIG. 3 The uptake kinetics of (a) pure SA, 33 wt% OleA*/SA, and pure OleA* surrogate and (b) pure SA, 30 wt% Levo*/SA, and pure Levo* surrogate.

FIG. 3 The uptake kinetics of (a) pure SA, 33 wt% OleA*/SA, and pure OleA* surrogate and (b) pure SA, 30 wt% Levo*/SA, and pure Levo* surrogate.

FIG. 4 The uptake kinetics of OleA*/SA particles of 9–85 wt% OleA* (data points with lines), pure OleA* surrogate (stars with a dotted line), and the fitting of pure SA (dotted line).

FIG. 4 The uptake kinetics of OleA*/SA particles of 9–85 wt% OleA* (data points with lines), pure OleA* surrogate (stars with a dotted line), and the fitting of pure SA (dotted line).

FIG. 5 The uptake kinetics of Levo*/SA particles of 10–78 wt% Levo* (data points with lines), pure Levo* surrogate (triangles with a dotted line), and the fitting of pure SA (dotted line).

FIG. 5 The uptake kinetics of Levo*/SA particles of 10–78 wt% Levo* (data points with lines), pure Levo* surrogate (triangles with a dotted line), and the fitting of pure SA (dotted line).

FIG. 6 Photo images of Levo*/SA particles with (6a and 6b) and without (6c and 6d) phase separation.

FIG. 6 Photo images of Levo*/SA particles with (6a and 6b) and without (6c and 6d) phase separation.

FIG. 7 (a) Plot of uptake coefficients against average organic wt% for fresh SA and SA/NL*. (b) OleA*/SA, (c) Levo*/SA mixed particles with low β (<0.3), (d) OleA*/SA, and (e) Levo*/SA particles with medium β (0.3–0.7) and high β (>0.7).

FIG. 7 (a) Plot of uptake coefficients against average organic wt% for fresh SA and SA/NL*. (b) OleA*/SA, (c) Levo*/SA mixed particles with low β (<0.3), (d) OleA*/SA, and (e) Levo*/SA particles with medium β (0.3–0.7) and high β (>0.7).
Supplemental material

uast_a_567314_sup_18025182.zip

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