caa a22 4500 378874179 CHVBK 20180305123416.0 cr unu---uuuuu 161128e20030801xx s 000 0 eng 10.1524/ract.91.8.487.20006 doi (NATIONALLICENCE)gruyter-10.1524/ract.91.8.487.20006 Application of microanalytical techniques to the study of aqueous ion sorption phenomena on mineral surfaces [Elektronische Daten] [V. E. Badillo-Almaraz, N. Toulhoat, P. Trocellier, M. Jullien] Nuclear microprobe analysis has been used to study the aqueous sorption of cadmium and selenium at different solution pH values onto hydroxyapatite. By coupling Particle Induced X-ray Emission (PIXE) and Rutherford Backscattering (RBS) microanalyses, we have quantified the concentration and modeled the depth distribution of Cd and Se in particles of calcium hydroxyapatites (HAP). No cadmium precipitation was observed for those experiments in which the initial concentration was greater than the solubility of Cd(OH)2 and CdCO3 at solution pH=9 and 12. The observation of the solid by transmission and scanning electron microscopies, SEM and TEM, showed the polycrystalline nature of the particles; these particles were constituted by aggregated nanocrystals. This additional information allowed us to interpret the incorporation of Cd and Se into the apatitic substrate as a penetration in the intra-particle porosity generated by this aggregation of crystals and probably not as diffusion in the solid structure. © 2003 Oldenbourg Wissenschaftsverlag GmbH Laboratory techniques, experiments nationallicence Analytical chemistry nationallicence Inorganic chemistry nationallicence Badillo-Almaraz V. E. aut Toulhoat N. aut Trocellier P. aut Jullien M. aut Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 91/8/2003(2003-08-01), 487-493 0033-8230 91:8/2003<487 2003 91 ract https://doi.org/10.1524/ract.91.8.487.20006 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/ract.91.8.487.20006 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Badillo-Almaraz V. E. aut NATIONALLICENCE 700 1- Toulhoat N. aut NATIONALLICENCE 700 1- Trocellier P. aut NATIONALLICENCE 700 1- Jullien M. aut NATIONALLICENCE 773 0- Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 91/8/2003(2003-08-01), 487-493 0033-8230 91:8/2003<487 2003 91 ract CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter