title: Measurement of serum ionized calcium with the ion-exchange electrode.
mesh_terms: D001793:Blood Preservation; D001800:Blood Specimen Collection; D002118:Calcium / Q000097:blood* / Q000592:standards; D002245:Carbon Dioxide; D004566:Electrodes; D004983:Ethanolamines; D005069:Evaluation Studies as Topic; D005615:Freezing; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007474:Ion Exchange; D008722:Methods; D009584:Nitrogen; D009821:Oils; D009994:Osmolar Concentration; D011786:Quality Control; D014357:Trypsin
chemical_list: D004983:Ethanolamines; D009821:Oils; D002245:Carbon Dioxide; D014357:Trypsin; D009584:Nitrogen; D002118:Calcium