Carboxylic acid in Secondary Aerosols from Oxidation at Cyclic monterpenes by Ozone
A series of smog chamber experiments have been conducted in which five cyclic monterpenes were oxidized by ozone. The evolved secondary aerosol was analyzed by GC-MS and HPLC-MS for non-volatile polar oxidation products with emphasis on the identification of carboxylic acids. Three classes of compounds were determined at concentration levels corresponding to low percentage molar yields: I.e. dicarboxylic acids, oxo-carboxylic acids, and hydroxy-keto-carboxylic acids. Carboxylic acids are highly polar and have low vapour pressures than their corresponding aldehydes and may thus play an important role in secondary organic aerosol formation processes.
Bibliographic Reference: Article: Environmental Science and Technology (1999)
Record Number: 199911683 / Last updated on: 1999-12-24
Original language: en
Available languages: en