Phosphate Buffer Solution pH 7.5, 0.33m

Phosphate Buffer Solution pH 7.5, 0.33m Dissolve 119.31 g of disodium hydrogen phosphate R in water R and dilute to 1000.0 mL with the same solvent (solution A). Dissolve 45.36 g of potassium dihydrogen phosphate R in water R and dilute to 1000.0 mL with the same solvent (solution B). Mix 85 mL of solution A and 15 mL of solution B. Adjust the pH (2.2.3) if necessary.