Determination of bisbenzylisoquinoline alkaloids by high-performance liquid chromatography (II)

After the earlier analysis of nine bisbenzylisoquinoline alkaloids with ion pair chromatography, seven other bisbenzylisoquinoline alkaloids were analyzed using gradient elution with an acetonitrile–phosphate buffer (pH 8.0) mixture, and UV detection. Four alkaloids were detected in the stem woods of a Lauraceous plant, Dehaasia triandra Merr. and their contents determined. LC–MS suggested that a major unknown compound in the plant was also a bisbenzylisoquinoline alkaloid.