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Titolo:
HPLC combined with multiple mass spectrometry (MSn): an alternative for the structure elucidation of compounds and artefacts found in smog chamber samples
Autore:
Brombacher, S; Oehme, M; Beukes, JA;
Indirizzi:
Univ Basel, CH-4057 Basel, Switzerland Univ Basel Basel Switzerland CH-4057 v Basel, CH-4057 Basel, Switzerland Univ Oslo, Dept Chem, N-0315 Oslo, Norway Univ Oslo Oslo Norway N-0315Univ Oslo, Dept Chem, N-0315 Oslo, Norway
Titolo Testata:
JOURNAL OF ENVIRONMENTAL MONITORING
fascicolo: 3, volume: 3, anno: 2001,
pagine: 311 - 316
SICI:
1464-0325(2001)3:3<311:HCWMMS>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBONYL-COMPOUNDS; CHEMICAL-IONIZATION; CHEMISTRY; 2,4-DINITROPHENYLHYDRAZONES; INTERFERENCES; DERIVATIVES; ATMOSPHERE; ALDEHYDES; KETONES; OZONE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Oehme, M Univ Basel, Neuhausstr 31, CH-4057 Basel, Switzerland Univ Basel Neuhausstr 31 Basel Switzerland CH-4057 , Switzerland
Citazione:
S. Brombacher et al., "HPLC combined with multiple mass spectrometry (MSn): an alternative for the structure elucidation of compounds and artefacts found in smog chamber samples", J ENVIR MON, 3(3), 2001, pp. 311-316

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 MSnspectra 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 arepresented.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 23:03:43