Element speciation determines the different forms a chemical element can take within a given compound, enabling chemists to predict possible ramifications for the environment and human health. This comprehensive book focuses on the analytical aspects and instrumentation of speciation, while covering the gamut of metal speciation forms with adverse effects on biological materials and the environment at large. The book consists of contributions by a truly international group of leading authorities on element speciation in bioinorganic chemistry. The editor - a contributor here himself - traces the developments in the field, discussing the advances made over the past decade in various methodologies and the significance of the increased capacity to detect extremely small concentrations of trace elements in various media.