Gray, D E <br/><br/>
Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography.  [electronic resource] 

 -  Journal of AOAC International   
 - 944-9 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1060-3271 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acetonitriles<br/>Anthracenes<br/>Bridged Bicyclo Compounds<br/>Chromatography, Liquid--methods<br/>Dietary Supplements<br/>Hypericum--chemistry<br/>Methanol<br/>Perylene--analogs & derivatives<br/>Phloroglucinol--analogs & derivatives<br/>Plant Leaves--chemistry<br/>Plants, Medicinal<br/>Quality Control<br/>Spectrometry, Fluorescence<br/>Spectrophotometry, Ultraviolet<br/>Terpenes--analysis