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  • Title: Synthesis and characterization of 4-iodophenylboronic acid: a new enhancer for the horseradish peroxidase-catalyzed chemiluminescent oxidation of luminol.
    Author: Kricka LJ, Cooper M, Ji X.
    Journal: Anal Biochem; 1996 Aug 15; 240(1):119-25. PubMed ID: 8811887.
    Abstract:
    4-Iodophenylboronic acid has been synthesized and shown to be a potent enhancer of the chemiluminescent horseradish peroxidase (Type VI-A)-catalyzed oxidation of luminol and isoluminol. The enhancer was effective (>100-fold enhancement) in the concentration range 10-1500 microM. Light emission in the presence of the enhancer peaked at 5-10 min after initiation of the reaction and then decayed very slowly. 4-Iodophenylboronic acid also enhanced reactions catalyzed by horseradish peroxidase Type IX. The detection limit for Type VI-A horseradish peroxidase was 509 amol, and optimum signal enhancement was obtained at 769 microM compared to 154 microM for 4-iodophenol under the same conditions.
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