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. 2013 Jul 1;110(29):11746–11750. doi: 10.1073/pnas.1307501110

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Fig. 4. — Intentional aldehyde (tridecanal) injection experiments. SOA mass concentration and carbonyl hydroperoxide (CARBROOH; C₁₂H₂₄O₃) signal monitored by CIMS at m/z 301 and CARBROOH-derived peroxyhemiacetals monitored by the AMS at m/z 183 and m/z 215 . UV lights are switched off after 4 h, and 9.5 ppb tridecanal is injected to the chamber at 6 h.

Inline graphic — Intentional aldehyde (tridecanal) injection experiments. SOA mass concentration and carbonyl hydroperoxide (CARBROOH; C₁₂H₂₄O₃) signal monitored by CIMS at m/z 301 and CARBROOH-derived peroxyhemiacetals monitored by the AMS at m/z 183 and m/z 215 . UV lights are switched off after 4 h, and 9.5 ppb tridecanal is injected to the chamber at 6 h.