Abstract
WITH the idea that the isotopic constitution of potassium contained in tumour tissue might be somewhat different from that present in normal tissue, comparative investigations in this field have been undertaken. The abundance ratio 3919K/4119K, and thereby, practically, the concentration of the heavy isotope 4119K, was estimated in potassium present in the ashes of various kinds of normal and tumour tissue, the measurements being carried out by means of a mass-spectrograph previously described in detail1,2.
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References
Brewer, A. K., J. Amer. Chem. Soc., 58, 365 (1936).
Brewer, A. K., J. Amer. Chem. Soc., 59, 869 (1937).
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LASNITZKI, A., BREWER, A. Isotopic Constitution of Potassium in Normal and Tumour Tissue. Nature 142, 538–539 (1938). https://doi.org/10.1038/142538b0
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DOI: https://doi.org/10.1038/142538b0
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