DETERMINATION OF ISOFLAVONES USING HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH ATMOSPHERIC-PRESSURE CHEMICAL-IONIZATION MASS-SPECTROMETRY

被引:20
作者
ARAMENDIA, MA
GARCIA, I
LAFONT, F
MARINAS, JM
机构
[1] Department of Organic Chemistry and Mass Spectrometry, Faculty of Sciences, University of Córdoba, Cordoba, E-14004, Avda S. Alberto Magno s/n
关键词
D O I
10.1002/rcm.1290090606
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
High-performance liquid chromatography in combination with mass spectrometric detection (atmospheric-pressure chemical ionization, APCI) was used to determine various isoflavones. Negative-ion APCI ionization has proved to be a suitable technique for determining this class of natural. compound, as it provides quality mass spectra which give not only the molecular weight of the isoflavones, but also their molecular structures; consistent collision-induced dissociation pathways were elucidated and fragments are reported. Deuterium oxide was used to induce peak shifts in the mass spectra in order to determine the number of exchangeable hydrogen atoms in each molecule.
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页码:503 / 508
页数:6
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