Shapiro, D R Ferric chloride-impregnated silica gel for thin-layer chromatography of steroids. [electronic resource] - Clinical chemistry Nov 1973 - 1305-6 p. digital Publication Type: Journal Article ISSN: 0009-9147 Subjects--Topical Terms: Androstanes--analysisAndrostenedione--analysisAndrosterone--analysisCholesterol--analysisChromatography, Thin LayerErgosterol--analysisEstrone--analysisIronKetosteroids--analysisPregnenolone--analysisSilicon DioxideSteroids--analysisSulfuric Acids