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Targeted borate complex formation as followed with electrospray ionization Fourier transform ion cyclotron mass spectrometry: Monomolecular model system and polyborate formation.
Rapid Commun. Mass Spectrom. 22, 3119-3129 (2008)
Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) was applied to identify boric acid(B degrees)/borate(B-) complexes in a monomolecular model system, composed of aqueous caffeic acid and boric acid/borate solutions in various concentration ratios at pH 9.2. Using negative mode electrospray ionization as a 'soft' ionization technique, clusters of polyborate were detected beside the well-known BL degrees , BL- and BL2- complexes. An algorithm for the detection of boron complexes, based on their accurate mass and isotope patterns, is proposed which enabled the assignment of elemental compositions/structural formulae of boron/ligand complexes. We present experimental evidence of self-oligomerization of up to six borate units with caffeic acid, resulting in stable covalently bound polyborate-polyol complexes.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
polyborate; FTICR-MS; boric acid(B degrees)/borate(B-) complexes
ISSN (print) / ISBN
0951-4198
e-ISSN
1097-0231
Zeitschrift
Rapid Communications in Mass Spectrometry
Quellenangaben
Band: 22,
Heft: 20,
Seiten: 3119-3129
Verlag
Wiley
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Ecological Chemistry (IOEC)