Determination of pKa values of new phenacyl-piperidine derivatives by potentiometric titration method in aqueous medium at room temperature (25±0.5oC) Journal title: Pakistan Journal of Pharmaceutical Sciences Authors: Shaista Zafar , Shamim Akhtar , Talat Tariq , Noushin Mushtaq , Arfa Akram , Ahsaan Ahmed , Muhammad... Subject(s):