Oyeleke G.O.

Science Laboratory Technology Department, Osun State Polytechnic, P.M.B. 301, Iree, Nigeria

Popoola A.V.

Chemistry Department, Federal University of Technology, P.M.B 704, Akure, Nigeria

Adetuyi A.O.

Chemistry Department, Federal University of Technology, P.M.B 704, Akure, Nigeria