Phosphate Buffer pH 4.0
Dissolve 6.8 g of potassium dihydrogen orthophosphate in 700 mL of water, adjust the pH, if necessary, with a 10% v/v solution of orthophosphoric acid and add sufficient water to produce 1000 mL.
Dissolve 6.8 g of potassium dihydrogen orthophosphate in 700 mL of water, adjust the pH, if necessary, with a 10% v/v solution of orthophosphoric acid and add sufficient water to produce 1000 mL.