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. 2022 Nov 23;3(4):101882. doi: 10.1016/j.xpro.2022.101882

Flag elution buffer

Reagent Final concentration Amount
Tris-HCl (1 M), pH 7.4 25 mM 2.5 mL
NaCl 500 mM 2.922 g
Urea 8 M 48.048 g
β-Me 5 mM 35 μL
Imidazole (5 M) 10 mM 0.2 mL
ddH2O N/A 97.2 mL
Total N/A 100 mL

Store at 4°C in dark; suggested maximum time for storage: 3 months.