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Chemiluminescent analytical device

  • US 4,231,754 A
  • Filed: 05/23/1979
  • Issued: 11/04/1980
  • Est. Priority Date: 05/23/1979
  • Status: Expired due to Term
First Claim
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1. A test device for determining an analyte in a sample comprising at least one layer incorporated with a first reagent system responsive to the presence of said analyte to produce a reaction product and at least one luminescent layer having a second reagent system responsive to the presence of said reaction product to produce luminescence, and in which there is a pH gradient between the first reagent system layer and the luminescent layer.

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