Abstract
The elemental composition of various synthetic crystalline sodium-boroaluminosilicates, especially the Al content and the silicon to aluminium bulk ratio, were determined by means of the combination of PIGE (Proton-Induced Gamma-Ray Emission Spectrometry) and PIXE (Proton-Induced X-Ray Emission Spectrometry). Light elements (B, O, Na, Al) were determined by means of gamma-ray emission. Proton-induced X-ray emission provided information on heavy elements present down to impurities. The Si/Al ratios, which mainly determine the catalytic and adsorptive properties of the zeolites, are compared with those obtained with other methods (EPMA, H2O sorption capacity) and show good agreement.
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Frey, H.U., Otto, G., Reschetilowski, W. et al. PIGE and PIXE analyses of pentasil type boroaluminosilicates. Journal of Radioanalytical and Nuclear Chemistry, Articles 120, 281–287 (1988). https://doi.org/10.1007/BF02037343
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DOI: https://doi.org/10.1007/BF02037343