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chromogen

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.06 sec.
chromogen [′krō·mə‚jen]
(biochemistry)
A pigment precursor.
(microbiology)
A microorganism capable of producing color under suitable conditions.


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Diamino benzidine was the substrate developed as a chromogen.
Antibody localization was determined by application of liquid diaminobenzidine substrate chromogen system (DAKO) for 1-5 min until the brown positive staining in control sections was optimal as determined by repeated microscopic examination.
After blocking with hydrogen peroxide, the tissue sections were labeled with peroxidase-conjugated streptavidin (Biogenex) and aminoethyl carbazole (AEC; Biogenex) was used as a chromogen.
 
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