title: [Investigation on the composition and structure of 400 urinary calculi].
abstract: 400 urinary calculi have been analyzed by chemical and physical methods, namely chemical qualitative analysis, metallic elements spectrometry, X-ray diffraction, infrared spectroscopy, thermographimetric analysis, polarizing microscopy, scanning electron microscopy, etc. Further understanding of the correlation between the structure and the composition of calculi was achieved, which may be helpful in inquiring the formation of urinary calculi.
authors: Y S
authors: YS
authors: Zhang
mesh_terms: D002118:Calcium / Q000032:analysis; D006801:Humans; D011188:Potassium / Q000032:analysis; D013052:Spectrometry, X-Ray Emission; D013057:Spectrum Analysis; D014545:Urinary Calculi / Q000032:analysis* / Q000648:ultrastructure
chemical_list: D011188:Potassium; D002118:Calcium
vernacular_title: Untersuchung über Zusammensetzung und Struktur von 400 Harnsteinen.