Synchrotron powder X-ray diffractionDrug productDrug substancePhysical characterizationSolid statePolymorphismPhase transformationsCrystallinityWhile X-ray powder diffractometry (XRD) is a powerful technique for characterizing crystalline phases, the sensitivity of the laboratory instruments can be a serious ...
X-Ray Synchrotron Powder Diffraction is a technique that involves using X-rays to analyze the atomic arrangement of crystalline solids by measuring the scattered X-ray intensity as a function of the scattering angle at a fixed X-ray wavelength, providing information about the average crystal structu...
Jephcoat AP, Hriljac JA, McCammon CA, O’Neill HSC, Rubie DC, Finger LW (1999) High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95, Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions. Am Mi...
Stahl K, Artioli G, Hanson JC (1996) The dehydration process in the zeolite laumontite: a real-time synchrotron X-ray powder diffraction study. Phys Chem Miner 23 (6): 328-336Stahl, K.; Artioli, G.; Hanson, J.C. The dehydration process in the Zeolite laumontite: A real-time ...
Grazing incidence X-ray diffraction experiments have revealed a number of surface structures and followed surface phase transformations; similar studies of boundary and interfacial structures are cited. Experiments on catalytic metals dispersed on supports have exploited anomalous scattering effects. High-...
The dehydration process of the natural zeolite laumontite Ca4Si16Al8O48 · 18 H2O has been studied in situ by means of powder diffraction and X-ray syn
Purpose. The aim of this study was to develop a highly sensitive powder X-ray diffraction (XRD) technique for quantification of crystallinity in substantially amorphous pharmaceuticals, utilizing synchrotron radiation and a 2-D area detector. Methods. Diffraction data were acquired at the European Syn...
X-ray diffraction computed tomography X-ray diffraction tomography (XRD-CT) makes it possible to non-destructively identify the crystallographic phases that compose a material, using the principles of X-ray powder diffraction26,27. As illustrated in Fig. 3g, the acquisition proceeds by probing a ...
Synchrotron X-ray powder diffraction data (λ=0.9359 ) were collected at Brookhaven National Laboratory (U.S.A.) and used for a structure Rietveld refinement (a=5.3314(3), b=5.3697(2), c=31.067(2) ). Convergence was obtained in space groups Fmmm, Amaa, and Abmm (Z=4) with the ...
Stoichiometric α-hexacelsianLTA and non-stoichiometric α-hexacelsianFAU phases were synthesized by the method of high-temperature induced transformation of Ba-exchanged LTA and FAU zeolites. The unit cell thermal expansion properties were followed using synchrotron X-ray Powder Diffraction (XRPD) data...