Medicago AB Products Are Available Worldwide. For Research Use Only. Tris-EDTA (TE) 10x Buffer Powder is used to dilute and store nucleic acid samples. Tris-EDTA-based solutions break protein cross-links and can therefore unmask antigens and epitopes in formalin-fixed and paraffin-embedded tissue sections. Treatment with TE Buffer enhances the staining intensity of antibodies in the immuno-histochemical detection of certain proteins.