... on the blot (e.g., 3,3'-diaminobenzidine, 4-chloronapthol mix forHRP [14]; 5-bromo-4-chloro-3'-indolyphosphate toluidine salt, nitro blue tetrazolium chlo-ride mix for AP). Alternatively, ... nonionicdetergents: 0.05% (v/v) Nonidet P-40 or Tween-20.4. Enzyme substrates: 2,2'-azino-bis(3-ethylbenzathiazaline 6-sulfonic acid) (ABTS) (1 mg/mL,A405nm), O-phenyldiamine (OPD) (1 mg/mL, A492nm), ... Histologically-based methods for detection of mucin,in Glycoprotein Methods and Protocols: The Mucins (Corfield, T., ed.), Humana,Totowa, NJ.2. Davies, R., Carlstedt, I. (2000) Isolation of large gel-forming...