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Reagents and method for detecting polychlorinated biphenyls

  • US 5,145,790 A
  • Filed: 05/04/1990
  • Issued: 09/08/1992
  • Est. Priority Date: 05/04/1990
  • Status: Expired due to Fees
First Claim
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1. A method for detecting the presence or amount of an analyte comprising polychlorinated biphenyl in a test sample, which method comprises the steps of:

  • (a) adding a known concentration of a tracer labeled with a detectable moiety and a known concentration of an analyte-specific antibody to the test sample to form a mixture,wherein the tracer has the general structure of ##STR55## wherein A is a spacer group consisting of from 0 to 50 carbon atoms and heteroatoms, including not more than ten heteroatoms, arranged in a straight or branched chain, saturated or unsaturated, wherein(i) not more than two heteroatoms are linked in the sequence --NH--A--M--Fl or --O--A--M--Fl,(ii) A is not a single heteroatom, and(iii) branching occurs only on carbon atoms;

    M is a linking group selected from the group consisting of ##STR56## Fl is a detectable moiety; and

    wherein independently x1 =0-4 and x2 =0-5, with the proviso that together x1 and x2

    1;

    (b) incubating said mixture for a time and under conditions sufficient to form labeled tracer-antibody and analyte-antibody complexes; and

    (c) determining the presence or amount of tracer-antibody complexesformed as a measure of the presence or amount of analyte in the test sample.

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