Work

Chemical analysis of new particles with diameters less than 10 nm, generated from β-pinene ozonolysis

Year: 2025

Type: article

Abstract: We conducted a chemical analysis of new particles with diameters less than 10 nm, generated from β-pinene ozonolysis. The particles were collected on a filter using a 1 nm scanned mobility particle sizer spectrometer and analyzed using an electrospray ionization high-resolution mass spectrometer. Our findings confirmed the presence of C9H14O5 to C9H14O7 in the new particles, suggesting the occurrence of autoxidation from C9H13O5 to C9H13O7. Subsequent autoxidation from C9H13O7 to C9H13O9 was not observed. This is the first report that a highly oxygenated organic molecule, C9H13O7, was detected in newly formed particles with diameters <10 nm, as far as we know.

Source: Chemistry Letters

DOI: 10.1093/chemle/upaf061

Authors: Satoshi Inomata, Daisuke Fukuyama, Kanako Sekimoto

Institutions: National Institute for Environmental Studies, Yokohama City University

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $1,003

Funder: Japan Society for the Promotion of Science