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Tenders are invited for Supply of powder x-ray diffraction system as per technical specification of tender.
The researchers characterized the conditions of the hydrogenation reaction using in-situ synchrotron radiation X-ray diffraction measurement, while the crystal and electron structures of the compound formed were studied with powder X-ray diffraction measurement and first-principle calculations, respectively.
The topics include phase-appropriate method validation, validation of near-infrared systems for raw material identification, risk-based validation of laboratory information management systems, instrument qualification and performance verification for particle size instruments, automated liquid-handling systems, and performance qualification and verification in powder x-ray diffraction.
Powder X-ray Diffraction of Triglycerides in the Study of Polymorphism
These milestone achievements or "firsts" included: (1) the invention of the lever-arm type diamond anvil cell (DAC) in 1958; (2) the development of DAC technology for powder x-ray diffraction at high pressure in 1960; (3) the introduction of DAC methodology for single crystal x-ray diffraction at high pressure in 1964; (4) the invention of the optical fluorescence ruby method of pressure measurement in 1971; and (5) the discovery of hydrostatic pressure-transmitting media useful to unprecedented pressures for that time.
Key words: CD-ROM data storage; powder data evaluation; Research Associateship; SRMs for powder diffraction; standard powder x-ray diffraction patterns.
Crystal structure determinations using powder X-ray diffraction data are the key to clarify the structural changes responsible for observed symmetry changes and to pinpoint the phase-transition mechanism(s), not only for natrolite but also for other framework silicate minerals.
Powder X-ray diffraction (Rigaku DMAX 2200, Rigaku/USA, MA) and microscopic examinations by scanning electron microscopy (JEOL JSM-5300, JEOL USA Inc.