title: Micro-Raman line broadening in synthetic carbonated hydroxyapatite.
abstract: Using a Raman microspectrometer, we have recorded Raman spectra of synthetically produced hydroxyapatite samples with varying carbonate contents. The apatites were produced from aqueous solutions at about 40 degrees C. From line-broadening values of the symmetric phosphate stretch, it was concluded that the carbonate substitution in these lattices has a maximum of 4.5 wt %. Both phosphate and hydroxyl ions seem to be involved in the carbonate substitution process.
mesh_terms: D002254:Carbonates / Q000032:analysis*; D017886:Durapatite; D006878:Hydroxides / Q000032:analysis; D006882:Hydroxyapatites / Q000032:analysis* / Q000138:chemical synthesis; D010710:Phosphates / Q000032:analysis; D013059:Spectrum Analysis, Raman
chemical_list: D002254:Carbonates; D006878:Hydroxides; D006882:Hydroxyapatites; D010710:Phosphates; D017886:Durapatite