Using a flow tube reactor coupled to a chemical ionization mass spectrometer, the Cl-initiated oxidation of solid and supercooled liquid brassidic acid (BA, trans-13-docosenoic acid) particles was investigated in the presence of NO and NO2. For the first time, organic nitrate formation from the heterogeneous oxidation of model organic aerosols in the presence of NO was observed, but none was fo...

The handling of solid reagents, catalysts and by-products is a daunting challenge in continuous-flow micro- milli-reactors. Suspensions tend to settle over time leading irrevocable clogging the reaction channels. Herein, we describe our efforts develop an ultrasonic milli-reactor which can handle such challenging solid-containing transformations. reactor consists Langevin-type transducer, sonot...

Tbe term cloud chemistry is considered bere to comprise both cloud composition and reactions that take place in clouds. Clouds are a very special subset of tbe atmosphere because they present substantial amounts of condensed-phase water (liquid or solid) that can dissolve gases that would otherwise be present in the gas phase, and, as a consequence of condensed-phase reactions, pennit reactions...