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Article – Journal of Advanced Chemical Sciences

Journal of Advanced Chemical Sciences, Volume 1,Issue 3,2015 Pages 97-99

Study of Pb2+- Famotidine Complexes by Polarography
A. Garg, Y. Kumar, R. Pandey*

The interaction between famotidine and Pb2+ was investigated using direct current polarography. The polarographic technique was used to determine the stability constants and thermodynamic parameters such as enthalpy change (ΔH#), free energy change (ΔG#) and entropy change (ΔS#) of Pb2+ complexes with famotidine. The study was carried out at two different temperatures 20 °C and 30 °C. Pb2+-famotidine complexes were formed in 1:1 and 1:2 ratios. The electrode processes were reversible and diffusion controlled.
Keywords: Stability Constant; Thermodynamic Parameters; Pb2+–Famotidine System