| potassium, dietary | Potassium or potassium compounds used in foods or as foods. (12 Dec 1998) |
|---|---|
| potassium-40 | A naturally occurring (0.0117%) radioactive potassium isotope; beta emitter with half-life of 1.26 billion years; chief source of natural radioactivity of living tissue. (05 Mar 2000) |
| potassium-42 | An artificial potassium isotope; beta emitter with half-life of 12.36 hr, used as a tracer in studies of potassium distribution in body fluid compartments and in localization of brain tumours. (05 Mar 2000) |
| potassium-43 | An artificial potassium isotope; a beta emitter with a half-life of 22.3 hr, used as a tracer in myocardial perfusion studies. (05 Mar 2000) |