Speciation and the bioavailability of actinide elements
1989
Abstract A good understanding of the quantitative uptake of actinide elements from foodstuffs, across the mucosal cell membranes of the gastrointestinal tract, into man is of great importance in setting intake limits and in assessing radiation doses to critical organs. In the past, such knowledge has been gained from the extrapolation of animal models to man. Whilst this strategy has proved useful in a number of cases, it is, unfortunately, phenomenological and the results prone to perturbation from factors such as the fasting state of the animal and the initial chemical form of the actinide. The application of computer simulation models which can calculate the chemical speciation of an element in a variety of foodstuffs under conditions pertinent to the gastrointestinal tract offers a non‐invasive and general method for predicting the uptake of exogenous elements, like the actinides. This paper reviews the current state of chemical speciation analysis with respect to bioavailability highlighting areas re...
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