Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Reexamination Certificate
2007-03-20
2007-03-20
Le, Long V. (Department: 1641)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
C435S007920, C435S007930, C435S975000, C436S544000, C436S546000, C436S056000, C530S402000, C530S403000, C530S388900, C530S389800
Reexamination Certificate
active
11271282
ABSTRACT:
The present invention relates to a method for preparing haptens of formulae I and II that are useful in the preparation of immunogens, antibodies and conjugates, for use in competitive immunoassays for the detection of ractopamine, isoxsuprine and ritodrine. The haptens are prepared by reacting a phenylethanolamine derivative of formula D with a phenylalkylcarbonyl derivative of formula E:in which, in formula I, Z1is a crosslinker and Z2is H and, in formula II, Z1is H and Z2is a crosslinker.
REFERENCES:
patent: 6274334 (2001-08-01), Shelver et al.
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Benchikh El Ouard
Fitzgerald Stephen Peter
Lowry Andrew Philip
McConnell Robert Ivan
Haq Shafiqul
Le Long V.
Randox Laboratories
Woodcock & Washburn LLP
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