Introduction: Knowledge of the structure and composition of the upper atmosphere of the giant planets is critical to a better understanding of thermospheric heat sources, radiative transport, methane photochemistry, and chemical-dynamical balance in the atmospheres of these planets, as well as being critical for planning future missions that involve deep atmospheric probes or aerobraking. Altho...

The ‘Switch-Off’ method for rapid investigation of flow photochemical reactions was developed and three model were investigated. Full photoreaction profiles obtained with exposure times from maximum down to zero.

Post-column photochemical reaction systems have developed into a common approach for enhancing conventional methods of detection in HPLC. Photochemical reactions as a means of 'derivatization' have a significant number of advantages over chemical reaction-based methods, and a significant effort has been demonstrated to develop an efficient photochemical reactor. When coupled to electrochemical ...

To better understand the photochemical processing of dicarboxylic acids and related polar compounds, we conducted batch UV irradiation experiments on two types of aerosol samples collected from India, which represent anthropogenic (AA) and biogenic (BA) aerosols, for time periods of 0.5 to 120 h. The irradiated samples were analyzed for molecular compositions of diacids, oxoacids and α-dicarbon...