title: Determination of calcium in pharmaceutical preparations by atomic absorption spectrometry.
mesh_terms: D002118:Calcium / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D004304:Dosage Forms; D004492:Edetic Acid; D007811:Lanthanum; D008722:Methods; D013053:Spectrophotometry
chemical_list: D004304:Dosage Forms; D007811:Lanthanum; D004492:Edetic Acid; D002118:Calcium