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Uric acid assay device with stabilized uricase reagent composition

  • US 6,753,159 B1
  • Filed: 11/08/2001
  • Issued: 06/22/2004
  • Est. Priority Date: 08/06/1998
  • Status: Expired due to Fees
First Claim
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1. An assay device for determination of the presence and concentration of uric acid in a liquid sample comprising:

  • a reagent test patch; and

    , a working solution applied to the reagent test patch, the working solution comprising an enzyme stabilizer, uricase, a chromogen system, an oxygen acceptor and a buffer that buffers the solution to a pH of 8.5 to 9.5 and has a salt concentration of 1.0 to 2.0M;

    wherein the reagent test patch is dried after application of the working solution.

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