Articles | Volume 15, issue 22
Atmos. Chem. Phys., 15, 12867–12877, 2015
https://doi.org/10.5194/acp-15-12867-2015
Atmos. Chem. Phys., 15, 12867–12877, 2015
https://doi.org/10.5194/acp-15-12867-2015
Research article
 | Highlight paper
19 Nov 2015
Research article  | Highlight paper | 19 Nov 2015

Laboratory evidence of organic peroxide and peroxyhemiacetal formation in the aqueous phase and implications for aqueous OH

Y. B. Lim and B. J. Turpin

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This paper demonstrates organic peroxide and peroxyhemiacetal formation during aqueous photooxidation of methylglyoxal using ultra-high-resolution Fourier transform ion cyclotron resonance electrospray ionization mass spectrometry (FTICR-MS). Then, we provide simulation results of organic peroxide/peroxyhemiacetal formation in clouds and wet aerosols and discuss organic peroxides as a source of condensed-phase OH radicals and as a contributor to aqueous secondary organic aerosol (SOA).
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