Tracers in the Study of Membrane Processes

  • John A. Jacquez


Isotopes are used so widely in biology and chemistry as tracers of processes and to map reaction pathways, it is important to be reminded at regular intervals of the assumptions made in their daily use; that is, we usually act as though isotopes were simply labeled atoms, i.e., ideal tracers. An ideal tracer is an atom which differs in some measurable way from the normal atom but has properties identical with those of the normal atom. There are, of course, no ideal tracers. Thus, the important question in the use of isotopes as tracers is how much an isotope or a molecule labeled with an isotopic element differs from the natural or common element or molecule.


Isotope Effect Membrane Process Compartmental Analysis Ehrlich Ascites Tumor Cell Compartmental System 
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Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • John A. Jacquez
    • 1
  1. 1.Department of Physiology, The Medical School, and Department of Biostatistics, The School of Public HealthThe University of MichiganAnn ArborUSA

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