Exactly pre-weighed tablets for convenient and rapid preparation of PBST solution. Buffer solution composed of PBS with the addition of the non-ionic detergent Tween ® 20. Since detergents are known to reduce non-specific protein-protein interactions, PBST is preferably used as basic solution during Western blotting, ELISA or other immunochemical assays. Prepared solution may be sterilized by filtration (0,22 µm). For long-term storage, buffer solution should be kept at +4 °C. ROTI ® Fair Products - Sustainability As ready-to-use mixtures, ROTI ® Fair products reduce the user’s exposure to health-damaging substances used for preparation or pH adjustment. The production of ROTI ® Fair tablets and sachets is carefully controlled in large quantities and can be made energy efficient. ROTI ® Fair products reduce the total amount of waste produced and improve the footprint in the climate balance. ROTI ® Fair PBST 7.4 for 500 ml/tablet, for biochemistry and molecular biology