Urolithiasis pp 951-957 | Cite as

Isotachophoretic Determination of Oxalate in Unprocessed Urine

  • W. Tschöpe
  • E. Ritz


Measurement of urinary oxalate is important in the elucidation of the mechanisms of renal stone formation. Methods recently described for measuring oxalate depend mainly on colorimetry or enzymatic destruction utilizing the specific enzyme oxalate decarboxylase (E.C. All of the colorimetric methods1,2,3 and most of the decarboxylase methods4,5,6 require treatment of urine prior to measurement. This introduces the possibility of incomplete recovery and conversion of other substances into oxalate7. The pre- treatment procedures described involve precipitation with calcium2, pre-treatment with anion-exchange columns2, or precipitation of calcium oxalate with 14C-oxalate4.


Oxaluric Acid Calcium Oxalate Urinary Creatinine Urinary Oxalate Thermal Signal 
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Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • W. Tschöpe
    • 1
  • E. Ritz
    • 1
  1. 1.Sektion NephrologieMedizinische Universitat-KlinikHeidelbergFederal Republic of Germany

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