Gas chromatographic method for solvent residues in drug raw materials.

Abstract

A gas chromatographic (GC) method for screening drug raw materials, soluble in aqueous media, for volatile solvent residues has been developed. After dissolution, separate portions of the drug are each separately extracted with n-octane, toluene, and ether and injected into a chromatograph equipped with a porous polymer column and a flame ionization… (More)

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