title: A simple physicochemical micromethod for determining fixed anionic groups in connective tissue.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002356:Cartilage / Q000032:analysis*; D006025:Glycosaminoglycans / Q000032:analysis; D006801:Humans; D007477:Ions / Q000032:analysis*; D008722:Methods; D008832:Microchemistry; D008875:Middle Aged; D012975:Sodium Isotopes
chemical_list: D006025:Glycosaminoglycans; D007477:Ions; D012975:Sodium Isotopes