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  • Title: Method and reliability of crystallographic stone analysis.
    Author: Otnes B, Montgomery O.
    Journal: Invest Urol; 1980 Jan; 17(4):314-9. PubMed ID: 7351364.
    Abstract:
    The methods of daily routine analysis of urinary stones in one laboratory, employing a combination of microscopy, spectroscopy, chemistry, and X-ray diffractometry, are described. A methodologic study indicates that these methods are complementary and no one method is sufficient. Quantitative estimates are in general best obtained by X-ray diffraction, whereas qualitative identification of depositional sequence and the quantitative determination of minor constituents must depend on microscopic and chemical methods. Components at a concentration of 1 per cent may be identified whereas those in excess of 5 per cent are rarely overlooked. Concentrations are correct within +/- 10 per cent of stone mass.
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