PLoS ONE (Jan 2018)
Automated sequential chromogenic IHC double staining with two HRP substrates.
Abstract
Automated IHC double staining using diaminobenzidine and HRP Magenta is illustrated utilizing a new acidic block with sulfuric acid to prevent cross-reactivity. Residual cross-reactivity in double staining is determined to arise from chromogenic-bound antibodies and amplification system during the first part of the double staining.