Direct analysis of selected N-acyl-L-homoserine lactones by gas chromatography/mass spectrometry

T. R.I. Cataldi, G. Bianco, M. Frommberger, Ph Schmitt-Kopplin

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62 Scopus citations

Abstract

A rapid, simple and selective method involving direct separation by gas chromatography (GC) with electron ionization mass spectrometry (EI-MS) was employed to determine some N-acylhomoserine lactones (AHLs). Using GC/EI-MS, simultaneous separation and characterization of AHLs were possible without prior derivatization. Informative fragmentation patterns were obtained to identify the structures of N-acyl chains of AHLs. Electron ionization resulted in a common fragmentation pattern with the most abundant ion at m/z 143 and other minor peaks at m/z 71, 57, and 43. The presence of AHLs in extracts of Burkholderia cepacia strains was achieved in selected ion monitoring mode by using the prominent fragment at m/z 143.

Original languageEnglish
Pages (from-to)1341-1344
Number of pages4
JournalRapid Communications in Mass Spectrometry
Volume18
Issue number12
DOIs
StatePublished - 2004
Externally publishedYes

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