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The Ngo-Lenhoff (Mbth-Dmab) Peroxidase Assay

  • William D. Geoghegan

Abstract

The Ngo-Lenhoff peroxidase assay represents a new and sensitive procedure for the assay of horseradish peroxidase (HRP) and HRP-coupled reactions (Ngo and Lenhoff, 1980). The assay is sensitive enough to detect as little as 2–5 femtomoles of HRP per milliliter (Ngo and Lenhoff, 1980, Geoghegan et. al. 1983). Its sensitivity is based upon the oxidative coupling of 3-methyl-2-benzothi-azolinone hydrozone (MBTH) and 3-(dimethylamino)benzoic acid (DMAB) to form an indamine dye with a molar extinction coefficient of 47,600 (Ngo and Lenhoff, 1980).

Keywords

Benzoic Acid Oxidative Coupling Aliphatic Aldehyde Oxalate Oxidase Circulate Immune Complex 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • William D. Geoghegan
    • 1
  1. 1.Department of DermatologyThe University of Texas Health Science Center-HoustonUSA

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