Abstract
RECENT measurements1–6 of the natural isotopic composition of potassium have yielded values for the potassium-39/potassium-41 ratio ranging from 13.48 ± 0.07 (Nier) to 13.96 ± 0.05 (Omura and Morito). These results are not inconsistent with the presence of variations of 1 or 2 per cent in the potassium-39/potassium-41 ratio for different samples. Earlier measurements, many of which have been summarized by Reuterswärd3, cover an even wider range, and include numerous reports7–12 of differences of 1 per cent or more between the potassium-39/potassium-41 ratios of minerals, normal and cancerous human tissues, and other biological samples. More recently, Voshage and Hintenberger13 have shown that potassium of abnormal isotopic composition can be produced naturally as a result of the action of cosmic rays on iron meteorites.
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References
Nier, A. O., Phys. Rev., 77, 789 (1950).
White, J. R., and Cameron, A. E., Phys. Rev., 74, 991 (1948).
Reuterswärd, C., Arkiv Fysik, 11, 1 (1956).
White, F. A., Collins, T. L., and Rourke, F. M., Phys. Rev., 101, 1786 (1956).
Greenewalt, D., U.S. Atomic Energy Comm., Report NYO-3936 (1956).
Omura, I., and Morito, N., J. Phys. Soc. Japan, 13, 659 (1958).
Brewer, A. K., J. Amer. Chem. Soc., 58, 365 (1936).
Brewer, A. K., J. Chem. Phys., 4, 350 (1936).
Brewer, A. K., J. Amer. Chem. Soc., 59, 869 (1937).
Lasnitzki, A., and Brewer, A. K., Biochem. J., 35, 144 (1941).
Lasnitzki, A., and Brewer, A. K., Cancer Res., 1, 776 (1941).
Lasnitzki, A., and Brewer, A. K., Cancer Res., 2, 494 (1942).
Voshage, H., and Hintenberger, H., Z. Naturforsch., 14,a, 194 (1959).
Fenn, W. O., Bale, W. F., and Mullins, L. J., J. Gen. Physiol., 25, 345 (1942).
Lasnitzki, A., Amer. J. Cancer, 35, 225 (1939).
Mullins, L. J., and Zerahn, K., J. Biol. Chem., 174, 107 (1948).
Kendall, B. R. F., Rev. Sci. Instr., 29, 1089 (1958).
Kendall, B. R. F., Nuclear Instr., 3, 73 (1958).
Kendall, B. R. F., Rev. Sci. Instr., 29, 851 (1958).
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KENDALL, B. Isotopic Composition of Potassium. Nature 186, 225–226 (1960). https://doi.org/10.1038/186225a0
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DOI: https://doi.org/10.1038/186225a0
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