Ponceau-S fixative

Ponceau-S Fixative is a ready–to–use staining solution formulated for staining and fixing protein bands transferred on nitrocellulose, PVDF or cellulose acetate membranes. After staining the protein bands can be preserved for reference. Ponceau-S fixative provides an acidic environment to ensure permanent protein immobilization within gel or membrane matrices during specific staining protocols. This solution maintains gel staining stability for detailed band analysis in molecular protein research testing.