Comparative Fixation of Calcium and Strontium by Synthetic Hydroxyapatite

Abstract

Samples of hydroxyapatite with differing crystal sizes were prepared from solutions containing labeled calcium and strontium. Analysis of these preparations and the results of digestion studies showed a discrimination against strontium in crystal formation which was related to the rate of crystal growth. The discrimination was greater in the slowly grown, larger crystals than in the smaller, rapidly formed crystals. (auth)