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Uric acid dihydrate as urinary calculus component.

A Hesse, H J Schneider, W Berg

    Investigative Urology
    |March 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers analyzed uric acid dihydrate using spectroscopy and X-ray diffraction, finding it highly unstable. This compound was present in 3.7% of urinary calculi analyzed over three years.

    Area of Science:

    • Analytical Chemistry
    • Crystallography
    • Biomineralization

    Background:

    • Uric acid calculi are common urinary stones.
    • Understanding the properties of uric acid dihydrate is crucial for stone analysis.
    • Differentiating uric acid from its dihydrate form is important in clinical diagnostics.

    Purpose of the Study:

    • To characterize uric acid dihydrate using spectroscopic and crystallographic methods.
    • To assess the stability and conversion rate of synthetic uric acid dihydrate.
    • To determine the prevalence of uric acid dihydrate in urinary calculi.

    Main Methods:

    • Infrared spectroscopy for chemical identification.
    • X-ray diffraction for crystallographic analysis and lattice distance (dA) determination.

    Related Experiment Videos

  • Preparation of pure uric acid dihydrate via a modified technique.

    • Main Results:

    • Infrared spectroscopy and X-ray diffraction successfully differentiated uric acid dihydrate from uric acid.
    • Synthetic uric acid dihydrate exhibited extreme instability with a determined conversion speed.
    • Uric acid dihydrate was identified in 283 out of 7,750 urinary calculi (3.7%).

    Conclusions:

    • Uric acid dihydrate is an unstable compound.
    • The analytical techniques employed are effective for identifying uric acid dihydrate.
    • Uric acid dihydrate is a component in a notable percentage of urinary calculi, necessitating its consideration in stone analysis.