BSA (5%) in PBST with Azide

5% BSA in 0.05% Tween-20 and 0.02% Sodium azide in PBS (10 mM Sobiu, phosphate, 2 mM potassium phosphate, 10 mM KCl, 137 mM NaCl), pH 7.4 ± 0.1. Filtered through 1-micron filter. Shipped RT, store at 2-8°Cfor short term and -20°C for long term.