Thermal analysis of kidney stones and their characterization

0356255 - ÚACH 2011 RIV HU eng J - Journal Article
Kohútová, A. - Honcová, P. - Podzemná, V. - Bezdička, Petr - Večerníková, Eva - Louda, M. - Seidel, J.
Thermal analysis of kidney stones and their characterization.
Journal of Thermal Analysis and Calorimetry. Roč. 101, č. 2 (2010), s. 695-699. ISSN 1388-6150. E-ISSN 1588-2926
Institutional research plan: CEZ:AV0Z40320502
Keywords : kidney stones * characterization * thermal analysis * decomposition
Subject RIV: CB - Analytical Chemistry, Separation
Impact factor: 1.752, year: 2010

Thermal decomposition and structural characterization of three human kidney stones (KS1-KS3) extracted from patients of Eastern Bohemia have been carried out using X-ray powder diffraction systems (XRD), scanning electron microscope with energy dispersive X-ray micro analyser (SEM-EDX) and differential thermal analysis (DTA). The samples KS1 and KS2 solely consisted of calcium oxalate monohydrate (a.k.a. whewellite, CaC2O4 center dot H2O). The third sample, KS3, was formed from calcium oxalate dihydrate (weddellite, CaC2O4 center dot 2H(2)O), calcium oxalate monohydrate, and hydroxyapatite (HA, Ca-10(PO4)(6)(OH)(2)). Thermal measurements were carried out in the range between room temperature and 1,230 A degrees C. XRD analysis was utilized to investigate the change of phases at 800 and 1,230 A degrees C.
Permanent Link: http://hdl.handle.net/11104/0194826