title: Modification of the o-cresolphthalein complexone method for determining calcium.
mesh_terms: D001322:Autoanalysis; D002118:Calcium / Q000097:blood*; D003408:Cresols; D006801:Humans; D007202:Indicators and Reagents; D010635:Phenolphthaleins; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D003408:Cresols; D007202:Indicators and Reagents; D010635:Phenolphthaleins; D002118:Calcium