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Class microfiber histamine assay device

  • US 5,468,650 A
  • Filed: 02/28/1994
  • Issued: 11/21/1995
  • Est. Priority Date: 10/17/1988
  • Status: Expired due to Fees
First Claim
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1. In a diagnostic test device for use in an assay for histamine comprising a plurality of crushed glass microfibers which hinds histamine and which are deposited onto a carrier,the improvement which comprises that the crushed glass microfibers have been conglomerated by a binder which reduces the affinity of the conglomerated crushed glass microfibers towards interfering components in a sample while their histamine-binding capacity is substantially retained;

  • said binder being a polar organic polymer having a solubility parameter sphere substantially encompassing the solubility parameters for histamine.

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