Authors: Kohutova, A.¹; Honcova, P.²; Podzemna, V.²; Bezdicka, P.³; Vecernikova, E.³; Louda, M.⁴; Seidel, J.⁵

Source: Journal of Thermal Analysis and Calorimetry, Volume 101, Number 2, August 2010 , pp. 695-699(5)

Publisher: Springer

Abstract:

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·H₂O). The third sample, KS3, was formed from calcium oxalate dihydrate (weddellite, CaC₂O₄·2H₂O), calcium oxalate monohydrate, and hydroxyapatite (HA, Ca₁₀(PO₄)₆(OH)₂). Thermal measurements were carried out in the range between room temperature and 1,230 °C. XRD analysis was utilized to investigate the change of phases at 800 and 1,230 °C.

Keywords: Kidney stones; Characterization; Thermal analysis; Decomposition

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10973-010-0914-6

Affiliations: 1: Department of Inorganic Technology, University of Pardubice, Cs. Legion's Sq. 565, 532 10, Pardubice, Czech Republic, Email: anna.kohutova@student.upce.cz 2: Department of Inorganic Technology, University of Pardubice, Cs. Legion's Sq. 565, 532 10, Pardubice, Czech Republic 3: Institute of Inorganic Chemistry, Acad. Sci. CR, 25068, Rez u Prahy, Czech Republic 4: Department of Urology, University Hospital and Faculty of Medicine Charles University in Hradec Kralove, 50038, Hradec Kralove, Czech Republic 5: Department of Physical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09596, Freiberg, Germany

Publication date: 2010-08-01

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