HPLC quantitative analysis of biflavones in "Ginkgo biloba" leaf extracts and their identification by thermospray liquid chromatography-mass spectometry 
S. Gobbato...[et al.] 
 - Fitoterapia .
<br/><br/><label>Subjects--Index Terms: </label>Flavonoides Cromatografia Espectrometria Extractos vegetales Tecnicas analiticas