Jump to main content
Jump to site search

Issue 3, 2012
Previous Article Next Article

Use of denuder/filter apparatus to investigate terpene ozonolysis

Author affiliations

Abstract

A denuder/filter apparatus was used to collect the gaseous and particulate reaction products from ozonlysis of α-pinene, limonene and α-terpineol in an effort to develop sampling techniques for characterizing indoor environment chemistry. Carboxylic acids found in the particulate phase were derivatized to 2,2,2-trifuoroethylamides by reaction with 3-ethyl-1-[3-(dimethylamino)propyl]carbodiimide hydrochloride (EDC) and 2,2,2-trifluoroethylamine hydrochloride (TFEA). Carbonyl compounds collected in both gas phase and particulate phase were derivatized to their respective oximes by reaction with O-(2,3,4,5,6-pentafluoro-benzyl)hydroxylamine hydrochloride (PFBHA). The ozonolysis of α-pinene yielded the carboxylic acids: cis-pinonic acid and pinic acid and the proposed carboxylic acids methanetricarboxylic acid and terpenylic acid; the carbonyls: 4-oxopentanal, norpinonaldehyde, pinon aldehyde and the proposed carbonyl methylidenepropanedial. The ozonolysis of limonene yielded the carboxylic acids: limonic acid and pinic acid and the carbonyls: 1-(4-methylcyclohex-3-en-1-yl)ethanone (4AMCH), glyoxal, methyl glyoxal, 4-oxopentanal and 6-oxo-3-(prop-1-en-2-yl)heptanal (IPOH). The ozonolysis of α-terpineol yielded the proposed carboxylic acids: terpenylic acid and homoterpenylic acid and the carbonyls: (5E)-6-hydroxyhept-5-en-2-one, methyl glyoxal and 4-oxopentanal.

Graphical abstract: Use of denuder/filter apparatus to investigate terpene ozonolysis

Back to tab navigation

Publication details

The article was received on 30 Sep 2011, accepted on 01 Feb 2012 and first published on 15 Feb 2012


Article type: Paper
DOI: 10.1039/C2EM10799F
Citation: J. Environ. Monit., 2012,14, 1044-1054
  •   Request permissions

    Use of denuder/filter apparatus to investigate terpene ozonolysis

    J. R. Wells, J. Environ. Monit., 2012, 14, 1044
    DOI: 10.1039/C2EM10799F

Search articles by author

Spotlight

Advertisements