Erratum: Lipid composition of membranes ofEscherichia coliby liquid chromatography/tandem mass spectrometry using negative electrospray ionisation

Rapid Commun. Mass Spectrom. 2007; 21: 1721–1728. DOI: 10.1002/rcm3013 For both PG and PE, the product ions noted as [M-H – RCHCO – H2O]– on page 1724 (paragraph 2) and in Table 1 page 1725 should more probably correspond to [M-H – RCH2CO2H]– ions which have been previously described in the literature by several authors (references 12 and 15 in the text and additional references 39 and 40). 39. Hsu FF, Turk J. J. Am. Soc. Mass Spectrom. 2000; 11: 892. 40. Hsu FF, Turk J. J. Am. Soc. Mass Spectrom. 2001; 12: 1036.