The quantitative determination of some Mitragyna oxindole alkaloids. I. Ultra violet spectrophotometry.
D000470:Alkaloids / Q000032:analysis*; D007211:Indoles / Q000032:analysis*; D010946:Plants, Medicinal / Q000032:analysis*; D013053:Spectrophotometry; D014466:Ultraviolet Rays
D000470:Alkaloids; D007211:Indoles