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Abstract Powder diffraction is essential in patenting pharmaceutical tablets as the regulatory authorities require characterization of what a patient actually consumes. Diffraction measurements are from a crushed tablet of the drug in the form in which the patient is taking it for their disease or ailment.
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Powder diffraction and pharmaceuticals
2007The vast majority of pharmaceutically active ingredients, as well as the excipients employed in formulating pills, tablets and capsules, are solids. The generally preferred analytical technique for the characterization and identification of those solids is X-ray powder diffraction (XRPD).
J. Bernstein, S. M. Reutzel-Edens
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Powder Diffraction: By Decades
2012This introductory chapter reviews the first 100 years of powder diffraction, decade by decade, from the earliest X-ray powder diffraction measurements of the crystal structure of graphite through to the diversity and complexity of twenty-first century powder diffraction.
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2009
Abstract Shortly after the discovery of the diffraction of X-rays by a single crystal, Debye and Scherrer (1916) and Hull (1917) independently showed that a characteristic diffraction pattern is also given by a sample consisting of a polycrystalline powder.
B T M Willis, C J Carlile
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Abstract Shortly after the discovery of the diffraction of X-rays by a single crystal, Debye and Scherrer (1916) and Hull (1917) independently showed that a characteristic diffraction pattern is also given by a sample consisting of a polycrystalline powder.
B T M Willis, C J Carlile
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Materials development using powder diffraction techniques and the Powder Diffraction File
Acta Crystallographica Section A Foundations and Advances, 2023T. Blanton +3 more
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Macromolecular powder diffraction
2007The main reasons why powder-diffraction data from proteins and protein complexes have such high potential are: (i) powders are easily prepared under a wide range of conditions and are not subject to the restricted circumstances required for growing suitable single crystals; (ii) protein powders are inherently `perfect' for diffraction; the individual ...
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Powder diffraction of superconductors
2007In this chapter, the properties and structural features of superconductors and superconducting (SC) systems are briefly described. The presence of superconductivity is related closely to the structure type, chemical composition and the distribution of atoms and/or ions in a material, and is also affected by the external conditions such as temperature ...
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Fundamentals of Powder Diffraction
2012In this contribution we provide the theoretical and experimental basis of powder diffraction methods, which, in the last decades, have been widely used for qualitative and quantitative phase analyses, materials characterization and lately, for structural analyses of polycrystalline species and in situ and real time characterization of chemical ...
MASCIOCCHI, NORBERTO, GALLI, SIMONA
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