Kinetics of complexation reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone(BPPT) was spectrophotometrically examined at 421 nm.The ligand that is developed for a simple kinetic-spectrophotometric de...Kinetics of complexation reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone(BPPT) was spectrophotometrically examined at 421 nm.The ligand that is developed for a simple kinetic-spectrophotometric determination of Co2+ is based on 1:2 complex formation between Co2+ and BPPT.The complexation reaction was carried out in ethanol-water medium at 25 ℃.Kinetic and activation parameters of the complexation reaction were calculated,and the rate equation and the reaction mechanism were proposed.The calibration graph is linear in the concentration range of 0.10～2.91 mg·L-1 for the tangent method.The species that caused interference were investigated.展开更多
基金The Project Supported by the Scientific Research Projects (BAP) of Selcuk University, Turkey (EF-2001/064)
文摘Kinetics of complexation reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone(BPPT) was spectrophotometrically examined at 421 nm.The ligand that is developed for a simple kinetic-spectrophotometric determination of Co2+ is based on 1:2 complex formation between Co2+ and BPPT.The complexation reaction was carried out in ethanol-water medium at 25 ℃.Kinetic and activation parameters of the complexation reaction were calculated,and the rate equation and the reaction mechanism were proposed.The calibration graph is linear in the concentration range of 0.10～2.91 mg·L-1 for the tangent method.The species that caused interference were investigated.
