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Compositions and methods for determining the presence of amphetamines in a sample suspected of containing amphetamine and/or methamphetamine

  • US 5,328,828 A
  • Filed: 07/20/1992
  • Issued: 07/12/1994
  • Est. Priority Date: 12/23/1988
  • Status: Expired due to Term
First Claim
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1. A reagent system comprising (i) at least two conjugates, wherein in one conjugate an enzyme is bound to an amphetamine ligand analog and in the other conjugate said enzyme is bound to a methamphetamine ligand analog, (ii) an antibody to amphetamine, and (iii) an antibody to methamphetamine, wherein at least one of said antibodies is a monoclonal antibody and each of said antibodies is moderately cross-reactive with that conjugate which binds more strongly with the other antibody.

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