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Gas chromatography of cardenolides in relation to other
Preparation of packing materials for gasliquid chromtography
7 other sections not shown
3-anhydrocardenolides 3-anhydrodigitoxigenin ABAW according to procedure acetic anhydride acetolysis acetone acetylation acid hydrolysis acid methyl ester acid washing analysis of cardenolides anhydrogenin C-14 hydroxyl group cardenolide derivatives cardenolides cardiac glycosides chemically bonded chromatogram chromatography of cardenolides cm ID coating Column temperature compounds deactivation Dehennin dehydration derivatization described dgtxg dgxg diacetate dichloromethane digitoxigenin digitoxin digoxin dissolved DMDCS double bond epoxide epoxycardanolides epoxygeninic acid methyl evaporation extraction formation Gas chromatograms gas chromatography gas-liquid chromatography genin glass 150 cm glycosidic bonds heptafluorobutyric HFBA HMDS hydrochloric acid hydrolysis lactone lactone ring Lindig and Repke McMartin and Street mesh methanol methods molecule moleſl monoacetate n-butylboronic acid obtained OV-1 on silanized peak PEG 20M phenobarbital polar pyridine quantitative reaction mixture reaction products reagents retention side reactions silanization silanized Chromosorb W(AW solid support solution solvent stationary phase steroids sugar moiety support material TFAA tion trifluoroacetic underivatized Watson and Kalman