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Airs, Ruth L.; Keely, Brendan J.

Atmospheric pressure chemical ionisation liquid chromatography/mass spectrometry of bacteriochlorophylls from Chlorobiaceae: characteristic fragmentations

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  • Medientyp: E-Artikel
  • Titel: Atmospheric pressure chemical ionisation liquid chromatography/mass spectrometry of bacteriochlorophylls from Chlorobiaceae: characteristic fragmentations
  • Beteiligte: Airs, Ruth L.; Keely, Brendan J.
  • Erschienen: Wiley, 2002
  • Erschienen in: Rapid Communications in Mass Spectrometry, 16 (2002) 5, Seite 453-461
  • Sprache: Englisch
  • DOI: 10.1002/rcm.598
  • ISSN: 0951-4198; 1097-0231
  • Schlagwörter: Organic Chemistry ; Spectroscopy ; Analytical Chemistry
  • Entstehung:
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  • Beschreibung: AbstractAtmospheric pressure chemical ionisation liquid chromatography/mass spectrometry/mass spectrometry (APCI‐LC/MS/MS) has been applied to the study of bacteriochlorophylls c, d, and e of phototrophic prokaryotes. Cultures of Chlorobiaceae containing bacteriochlorophyll c, d or e were examined using a high‐resolution high‐performance liquid chromatography (HPLC) method and APCI‐LC/MS/MS employing post‐column addition of formic acid. The results reveal complex distributions of bacteriochlorophyll homologues, with some closely eluting species giving isobaric protonated molecules. On‐line LC/MS/MS studies reveal characteristic fragment ions for bacteriochlorophylls c, d, and e. Fragmentations involving loss of the extended alkyl substituents that are unique to bacteriochlorophylls c, d and e and their derivatives have been rationalised by studying the phaeophorbides and the results applied to the direct study of the bacteriochlorophylls. Copyright © 2002 John Wiley & Sons, Ltd.