Diffuse-reflectance Fourier transform-infrared spectroscopic microanalysis of the flavonolignans |
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| Authors: | Francisco Martínez Tomás Adzet José Iglesias |
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| Institution: | (1) Laboratory of Pharmacology and Pharmacognosy, Department of Pharmacology and Chemical Therapeutics, Faculty of Pharmacy, University of Barcelona, Avda. Diagonal s/n, E-08028 Barcelona, Spain;(2) Present address: I. B.  Galileo Galilei , Seminari de Ciències Naturals, C./Molí 57, E-08016 Barcelona, Spain |
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| Abstract: | Diffuse-reflectance Fourier transform-infrared spectroscopic (DRIFT) microanalysis (10  g samples) of a selected series of flavonoids was studied, comparing to transmission FT-IR spectroscopic analysis of the same samples at the mg level. DRIFT was shown to be a useful, sample-saving and reliable IR technique for the structural analysis and compound identification of the mainSilybum genus 3-OH-flavonolignans (silybin, isosilybin, silydianin, silychristin and isosilychristin) and the dihydroflavonol taxifolin. |
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| Keywords: | diffuse-reflectance infrared spectroscopy microanalysis flavonolignans flavonoids |
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