This Book entitled "CHEMICAL SPECIATION, SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF EMBELIN METAL COMPLEXES" to study, the role and significance of trace metal ions in biological systems. The author describes the selective physico-chemical studies on the embelin metal complexes of cobalt(II), nickel(II), copper(II) and zinc(II). A brief survey of the literature on the synthesis, chemical analysis, infrared absorption and thermogravimetric studies,differential thermogravimetry, infrared absorption and X-ray diffraction techniques. of the materials used and methods employed and...