
doi: 10.1007/bf00768119
The methods of polybuffer separation have been applied to the opium alkaloids and from this a method has been developed for separating the following alkaloids from an alcoholic ammoniacal opium mother liquor: morphine, codeine, thebaine, and papaverine. A basic scheme for the isolation of the same main opium alkaloids and narcotine from opium raw material has also been proposed.
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