Question: under consideration of solubility and partition coefficient, write a plan to determine the concentration of Salicylic Acid in the following pharmaceutical prescription which is contained

under consideration of solubility and partition coefficient, write a plan to determine the concentration of Salicylic Acid in the following pharmaceutical prescription which is contained of:

- 2 % Salicylic Acid

- 40% Paraffin

- 5% Glycerin

- 3% Span 80 - 50% H2O which is the better choice : NP-HPLC or RP-HPLC and why

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