[Determination of usnic acid in pharmaceutical preparations using liquid-phase and gas-chromatography].
D001572:Benzofurans / Q000032:analysis*; D002845:Chromatography; D002849:Chromatography, Gas; D004304:Dosage Forms / Q000032:analysis
D001572:Benzofurans; D004304:Dosage Forms
Determinazione dell'acido usnico nelle preparazioni farmaceutiche mediante cromatografia in fase liquida e gaschromatografia.