title: Ion selective electrodes--a new technology?
mesh_terms: D002624:Chemistry, Clinical / Q000295:instrumentation*; D004566:Electrodes; D006801:Humans; D007477:Ions; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis
chemical_list: D007477:Ions; D012964:Sodium; D011188:Potassium