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Use of CO.sub.2 absorbant for stabilization of dried alkaline reagent in creatinine assay

  • US 5,610,073 A
  • Filed: 09/26/1995
  • Issued: 03/11/1997
  • Est. Priority Date: 09/26/1995
  • Status: Expired due to Term
First Claim
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1. In a method for the detection of creatinine in which creatinine in aqueous solution is contacted with a dry reagent system comprising an indicator for creatinine at a pH above about 11.5 which pH is maintained by an alkaline material, the improvement which comprises packaging the reagent system with a material capable of absorbing CO2 and at least some ambient water vapor in sufficient amount to substantially inhibit the formation of carbonic acid in the area of the reagent system to thereby reduce the neutralization of the alkaline material during storage.

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