Phosphate Buffer Solution pH 8.5
Dissolve 3.5 g of dipotassium hydrogen phosphate R and 4.5 g of sodium chloride R in 500 mL of water R. Adjust the pH (2.2.3) with a mixture of equal volumes of dilute phosphoric acid R and water R.
Dissolve 3.5 g of dipotassium hydrogen phosphate R and 4.5 g of sodium chloride R in 500 mL of water R. Adjust the pH (2.2.3) with a mixture of equal volumes of dilute phosphoric acid R and water R.