Targeted borate complex formation as followed with electrospray ionization Fourier transform ion cyclotron mass spectrometry: Monomolecular model system and polyborate formation

Andras Gaspar, Mourad Harir, Marianna Lucio, Norbert Hertkorn, Philippe Schmitt-Kopplin

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

12 Zitate (Scopus)

Abstract

Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) was applied to identify boric acid(Bo)/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 BLo, 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.

OriginalspracheEnglisch
Seiten (von - bis)3119-3129
Seitenumfang11
FachzeitschriftRapid Communications in Mass Spectrometry
Jahrgang22
Ausgabenummer20
DOIs
PublikationsstatusVeröffentlicht - 30 Okt. 2008
Extern publiziertJa

Fingerprint

Untersuchen Sie die Forschungsthemen von „Targeted borate complex formation as followed with electrospray ionization Fourier transform ion cyclotron mass spectrometry: Monomolecular model system and polyborate formation“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren