Blotto/Tween 20 in PBS with Azide, pH 7.4

5% nonfat dry milk , 0.05% Tween-20, and 0.02% Sodium Azide in PBS (1mM Sodium phosphate, 2 mM potassium phosphate, 10 mM KCl, 137 mM NaCl), pH 7.4 ± 0.2. Prepared in DI water and filtered through 1µ filter. Shipped on blue ice, store at -20 C.