Dear all, while preparing the Ag/AgCl ink-coated carbon fiber reference electrode, I dipped the electrode in a reference membrane solution (78.1 mg of PVB and 50 mg of NaCl in 1 mL of methanol) [As per works of literature].

But in this case, I cannot dissolve the 50 mg of NaCl in the 78.1 mg of PVB in 1 mL of methanol solution. How can I prepare this cocktail solution? Please give your valuable suggestions.