Sodium phosphate buffer (pH 6.9, 0.02 M)

Sodium phosphate buffer (pH 6.9, 0.02 M) is a widely employed aqueous salt solution used in biochemical and analytical research. The well-defined buffering capacity of Sodium phosphate buffer (pH 6.9, 0.02 M) ensures stable pH conditions for enzymatic assays, protein handling, chromatography, and general laboratory workflows requiring physiological ionic strength.