Electron ionization mass spectrometry of citrus limonoids. Academic Article

abstract

• Electron ionization (EI) mass spectrometry was used to differentiate four structurally closely related citrus limonoid aglycones, including limonin, nomilin, obacunone, and deacetylnomilin. The limonoids were isolated and purified from citrus seeds. Structures of major fragment ions were elucidated by high-resolution mass spectrometry (HRMS) and fragmentation pathways were proposed. The fragmentation patterns observed in the EI spectra can be used as important references for the positive characterization of limonoid aglycones.

authors

• Patil, Bhimanagouda

published proceedings

• Rapid Commun Mass Spectrom

author list (cited authors)

• Tian, Q., Li, D., Barbacci, D., Schwartz, S. J., & Patil, B. S.

citation count

• 25

complete list of authors

• Tian, Qingguo||Li, Dan||Barbacci, Damon||Schwartz, Steven J||Patil, Bhimanagouda S

publication date

• November 2003

publisher

• Wiley  Publisher

published in

• Rapid Communications in Mass Spectrometry  Journal

keywords

• Benzoxepins
• Calorimetry, Differential Scanning
• Citrus
• Limonins
• Seeds
• Spectrometry, Mass, Electrospray Ionization
• Triterpenes

PubMed Central ID

• 14608622

Digital Object Identifier (DOI)

• 10.1002/rcm.1218

start page

• 2517

end page

• 2522

volume

• 17

issue

• 22

URL

• http://dx.doi.org/10.1002/rcm.1218