Abstract
SERIAL estimations of exchangeable potassium cannot be made after a single dose of potassium-42 because the half-life of the isotope (12.4 hr.) is too short. Rubidium-86 (half-life, 19.5 days) and potassium appear to be handled similarly in man, and Burch et al. 1 have suggested that this isotope could be used as a potassium tracer in prolonged studies.
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References
Burch, G. E., Threefoot, S. A., and Ray, C. T., J. Lab. Clin. Med., 45, 371 (1955).
Martin, M. M., and Walker, G., Metabolism, 6, 466 (1957).
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MARTIN, M., WALKER, G. Rubidium-86 as a Tracer of Potassium in Man. Nature 181, 705–706 (1958). https://doi.org/10.1038/181705a0
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DOI: https://doi.org/10.1038/181705a0
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