Artículos de revistas
Characterization of kidney stone by thermal analysis
Caracterização de cálculos renais por análise térmica
Fecha
2009-01-01Registro en:
Ecletica Quimica, v. 34, n. 1, p. 51-56, 2009.
1678-4618
0100-4670
10.26850/1678-4618EQJ.V34.1.2009.P51-56
2-s2.0-85116728347
Autor
Hospital Escola da Faculdade de Medicina de Valença - RJ
Universidade Estadual Paulista (UNESP)
CETEC-Universidade Cruzeiro Do Sul-UNICSUL
Universidade de São Paulo (USP)
Institución
Resumen
Ten samples of kidney stone had been studied through elemental analysis of CHN (EA), Infrared Absorption Spectroscopy and X-Ray Powder Diffraction (XRD). The thermal behavior of the samples is studied by Thermogravimetry/Derivative Thermogravimetry (TG/DTG) and Differential Scanning Calorimetry (DSC). The results of AE, IV absorption Spectroscopy and XRD showed the presence of struvite (NH4Mg [PO4].6H2O), apatite, monohydrated calcium oxalate and dihydrated calcium oxalate. The TG and DSC curves allowed to classify the samples in two different groups: Group I show typical thermal behavior of struvite and Group II present a profile thermal analytical characteristic of a mixture of calcium oxalate.