title: Preparation of water-soluble polyuronic acids and their calcium salts, and the determination of calcium ion activity in relation to the degree of polymerization.
mesh_terms: D000464:Alginates / Q000032:analysis / Q000138:chemical synthesis; D002118:Calcium / Q000032:analysis*; D002850:Chromatography, Gel; D005638:Fruit / Q000032:analysis; D007474:Ion Exchange; D008722:Methods; D010368:Pectins / Q000032:analysis / Q000138:chemical synthesis; D011108:Polymers / Q000032:analysis*; D014574:Uronic Acids / Q000032:analysis* / Q000138:chemical synthesis
chemical_list: D000464:Alginates; D011108:Polymers; D014574:Uronic Acids; D010368:Pectins; D002118:Calcium