Exchangeable Mass: Determination without Assumption of Isotopic Equilibrium

See allHide authors and affiliations

Science  19 Nov 1965:
Vol. 150, Issue 3699, pp. 1048-1050
DOI: 10.1126/science.150.3699.1048


The method of isotope dilution for determining the exchangeable mass of different substances in living organisms is, at best, approximate. A formally exact method, defining the otherwise vague concept of exchangeable mass, is proposed. The new method may serve as a standard for determining errors in results obtained by the earlier method.