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Oxalic acid determination in plasma

P G Krugers Dagneaux, J T Klein Elhorst, F M Olthuis

    Clinica Chimica Acta; International Journal of Clinical Chemistry
    |September 6, 1976
    PubMed
    Summary
    This summary is machine-generated.

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    This study presents a simple method for measuring oxalic acid in plasma. The technique involves ion-exchange resin cleanup and a colorimetric reaction, offering good recovery and precision without special equipment.

    Area of Science:

    • Biochemistry
    • Analytical Chemistry
    • Clinical Chemistry

    Background:

    • Oxalic acid is a key metabolite that can be toxic at elevated levels.
    • Accurate quantification of plasma oxalic acid is crucial for diagnosing and managing related metabolic disorders.
    • Existing methods may require specialized equipment or complex procedures.

    Purpose of the Study:

    • To develop and validate a straightforward method for estimating oxalic acid in plasma.
    • To provide a reliable and accessible assay for clinical and research settings.

    Main Methods:

    • Plasma samples are treated with an ion-exchange resin to remove interfering substances.
    • Oxalic acid is enzymatically reduced to glycolic acid.
    • A colorimetric reaction with chromotropic acid is employed for quantification.

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    Main Results:

    • The method demonstrates good recovery rates for oxalic acid.
    • High precision was achieved in the estimation of plasma oxalic acid levels.
    • No specialized laboratory equipment is necessary for performing the assay.

    Conclusions:

    • The developed method offers a simple, precise, and reliable approach for plasma oxalic acid determination.
    • This assay is suitable for routine clinical use due to its accessibility and lack of specialized equipment requirements.
    • The findings contribute to improved diagnostic capabilities for conditions related to oxalic acid metabolism.