Synthesis, Characterization and Antimicrobial Studies of Schiff base Derived from Salicyldehyde and 2,4-dinitrophenyl hydrazine and its Metal (II) Complexes Journal title: IOSR Journal of Applied Chemistry (IOSR-JAC) Authors: H. Mukhtar, U. Sani, M. H. Shagal, J. I. Joseph Subject(s):