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![Immunohistochemistry: DAB/Ni Peroxidase Substrate Kit [SK-4100-NB] - Tumor tissue section showing specific cytoplasmic cell staining (brown, DAB) with hematoxylin QS (blue) counterstain.](http://images.novusbio.com/fullsize/DAB-Ni-Peroxidase-Substrate-Kit-Immunohistochemistry-SK-4100-NB-img0003.jpg "Immunohistochemistry: DAB/Ni Peroxidase Substrate Kit [SK-4100-NB] - Tumor tissue section showing specific cytoplasmic cell staining (brown, DAB) with hematoxylin QS (blue) counterstain.")
![Immunohistochemistry-Paraffin: DAB/Ni Peroxidase Substrate Kit [SK-4100-NB] - Paraffin-embedded human prostate tissue stained using rabbit anti-prostate specific antigen (PSA) detected with VECTASTAIN Elite ABC Reagent and Vector DAB substrate.](http://images.novusbio.com/fullsize/DAB-Ni-Peroxidase-Substrate-Kit-Immunohistochemistry-Paraffin-SK-4100-NB-img0001.jpg)
![DAB/Ni Peroxidase Substrate Kit [SK-4100-NB]](http://images.novusbio.com/fullsize/DAB-Ni-Peroxidase-Substrate-Kit-SK-4100-NB-img0002.jpg)