title: Determination of free Ca ion concentrations with an ion-selective electrode in the presence of chelating agents in comparison with calculated values.
mesh_terms: D002118:Calcium / Q000032:analysis*; D004492:Edetic Acid; D004533:Egtazic Acid; D004566:Electrodes; D005026:Ethylene Glycols; D007700:Kinetics; D008722:Methods
chemical_list: D005026:Ethylene Glycols; D004533:Egtazic Acid; D004492:Edetic Acid; D002118:Calcium