Construction of a selective membrane electrode for the determination of procaine hydrochloride by Schiff bases

ABSTRACT This project including synthesis of selective membrane electrode ,consisting of electrically active material produced from Schiff base reaction of (procaine hydrochloride , m-hydroxyl benzeldehyde) with phosphomolybdic acid and dibutyl phthalate as blastilyzer material and used poly phenyl chloride as asupport material , The electrode gave liner response in the range (10-5-10-1 M) with slope 19.3mv\decade r2=0.9973 and LOD =1.72 10-7 M, The Optimum concentration of the inner solution was (10-4) M at temperature (25-35 C)and pH (6-8) .The Life time of the electrode was105 days.