title: Chromatographic studies on Canada balsam and some resin acids.
mesh_terms: D001453:Balsams / Q000032:analysis*; D002849:Chromatography, Gas; D002852:Chromatography, Ion Exchange; D002855:Chromatography, Thin Layer; D005782:Gels; D007475:Ion Exchange Resins; D012116:Resins, Plant / Q000032:analysis*; D012822:Silicon Dioxide
chemical_list: D001453:Balsams; D005782:Gels; D007475:Ion Exchange Resins; D012116:Resins, Plant; D012822:Silicon Dioxide