Jump to main content
Jump to site search

Issue 3, 2001
Previous Article Next Article

Author affiliations

Abstract

Ion trap multiple mass spectrometry combined with high-performance liquid chromatography (online HPLC-MSn) was used to identify carbonyl compounds and artefacts found in air samples of 2–3 L taken during the OH-radical reaction study of cis-3-acetyl-2,2-dimethylcyclobutylethanal (pinonal) or cis-3-acetyl-2,2-dimethylcyclobutylcarbaldehyde (nor-pinonal) in a smog chamber. Carbonyls were transformed into 2,4-dinitrophenylhydrazones. Detection of low picogram quantities was possible. Twenty-eight compounds could be identified based on the presence of structure characteristic fragments, a developed fragmentation scheme, comparison of retention times and a library of MSn spectra of selected carbonyls. Furthermore, the additional elucidation of the sub-structures of sixteen unknowns was possible. Details about the structure elucidation procedure and the formation of the observed fragments are presented.

Back to tab navigation

Article information


Submitted
06 Feb 2001
Accepted
23 Apr 2001
First published
10 May 2001

J. Environ. Monit., 2001,3, 311-316
Article type
Paper

HPLC combined with multiple mass spectrometry (MSn): an alternative for the structure elucidation of compounds and artefacts found in smog chamber samples

S. Brombacher, M. Oehme and J. A. Beukes, J. Environ. Monit., 2001, 3, 311
DOI: 10.1039/B101204P

Search articles by author

Spotlight

Advertisements