High definition sinchrotron X-ray powder diffraction used to investigate phase diagram of kidney calculi stones
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2010
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ENCONTRO NACIONAL DE FISICA DA MATERIA CONDENSADA, 33.
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The high definition sinchrotron X-ray powder diffraction (XRPD) technique was used to study the crystalline phase structural stability of human renal calculi under thermal treatment. The stones were colleted from 85 donors of Vit´oria City, Esp´ ırito Santo State- southeast- Brazil. A high definition sinchrotron X-ray powder diffraction was performed on one monophasic sample classified by a normal X-ray diffraction technique , which reveals that 61nucleation process developed in closed kidney cavities. A study of in situ the phase transformation of monohydrate calcium oxalate into calcium carbonate (CaCO3) was carried out by annealing of a monophasic monohydrate calcium oxalate calculi at 100o C, 150oC, 300o C, 350oC, 400o C and 500oC temperatures. A high definition sinchrotron X-ray powder diffraction data carried out from the in situ experiment indicated that there is a no structural water which occupied a interstitial grain boundary among the grains. We concluded that high definition sinchrotron X-ray powder diffraction is a important tool which can be used as suitable technique to study the phase diagram of renal calculi.
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FERREIRA, P.E.; PIEDADE, E.L.O. da; SOUZA, D.O. de; ORLANDO, C.G.P.; BELICH, H.; DEPIANTI, J.B.; MEDEIROS, E.F.; ORLANDO, M.T.D.; MARTINEZ, L.G.; CORREA, H.P.S. High definition sinchrotron X-ray powder diffraction used to investigate phase diagram of kidney calculi stones. In: ENCONTRO NACIONAL DE FISICA DA MATERIA CONDENSADA, 33., 10-14 de maio, 2010, Aguas de Lindoia, SP. Resumos... Disponível em: http://repositorio.ipen.br/handle/123456789/21143. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.