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Clinical Chemistry 17: 78-81, 1971;
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Clinical Chemistry, Vol 17, 78-81, Copyright © 1971 by the American Association for Clinical Chemistry

Use of a New Reducing Agent, Metamizol, in Determining Inorganic Phosphorus in Blood and Urine

Fayez K. Guirgis 1 and Yehia A. Habib 1

1 Faculty of Medicine, Alexandria, U.A.R.

We introduce a new reducing agent, metamizol, for determining inorganic phosphorus colorimetrically in a protein-free filtrate of serum or plasma or in a diluted urine specimen. A 1 g/100 ml solution of metamizol, 0.2 ml, is used with acid-molybdate reagent. The metamizol solution is stable at 4°C for as long as 3.5 months, and can replace the reducing agents used in the various reference procedures discussed. The results agree well with those obtained by standard procedures.


Key Words: methampyrone • inter-method comparisons

Submitted on August 26, 1970
Accepted on October 26, 1970






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Copyright © 1971 by the American Association for Clinical Chemistry.