F. O. Obumselu

Determination of the Mechanism of Nucleophilic Reaction of Fenitrothion Using Substituted Phenoxide Nucleophiles in Aqueous Media

E. G. Amadi, C. I. Egwuatu, C. U. Okoro, F. O. Obumselu & M. U. Onuoha · International Research Journal of Pure and Applied Chemistry · 2021

The mechanism of the nucleophilic displacement reaction at the phosphorus centre of organophosphates was determined. Phenoxide nucleophiles were reacted with fenitrothion (O,O-dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate) in water at 25oC and pseudo-first order rate const...

Open access Research Article 10.9734/irjpac/2021/v22i630415

Polyaromatic Hydrocarbons (PAHs) and Inorganic Chemical Contaminants at Refuse Dumpsites in Awka, South Eastern Nigeria: A Public Health Implication

J. K. Nduka, C. Anyakora, E. Obi, F. O. Obumselu, T. E. Ezenwa & L. C. Ngozi-Olehi · Journal of Scientific Research and Reports · 2013

Aim: Is to determine the levels some PAHs and inorganic contaminants in refuse dump soil samples within residential areas in Awka in Anambra State, Nigeria. Study Design: Ten soil samples (five study samples and five control samples) taken from five major refuse dumpsites in Awka...

Open access Research Article 10.9734/JSRR/2013/3051