title: Analysis of urinary calculi using photon induced X-ray fluorescence (XRF).
abstract: Photon induced X-ray fluorescence has been employed to determine trace elements in urinary calculi. Twenty-one urinary stones, classified in four groups, have been analysed. Besides Ca, elements Fe, Zn and Pb were detected, and Cr and Mn were also detected in some cases. No clear differences were found between the four groups.
mesh_terms: D003553:Cystine / Q000032:analysis; D006801:Humans; D010070:Oxalates / Q000032:analysis; D010710:Phosphates / Q000032:analysis; D013052:Spectrometry, X-Ray Emission; D014131:Trace Elements / Q000032:analysis; D014527:Uric Acid / Q000032:analysis; D014545:Urinary Calculi / Q000378:metabolism*
chemical_list: D010070:Oxalates; D010710:Phosphates; D014131:Trace Elements; D014527:Uric Acid; D003553:Cystine