This two-volume handbook, prepared by Editors involved in an EU validation project on speciation, provides comprehensive coverage of the sample preparation methods and analytical techniques utilised for speciation of different elements in environmental, food, and clinical samples. Handbook of Elemental Speciation I - Techniques and Methodology brings together a collection of chapters covering different aspects of procedures for speciation analysis at the different levels starting from sample collection and storage, through sample preparation approaches to render the species chromatographable, principles of separation techniques used in speciation analysis, to the element specific detection. Also covers quality assurance and risk assessment, and speciation-relevant legislation. Handbook of Elemental Speciation II - Species in the Environment, Food, Medicine and Occupational Health provides a comprehensive, cross-disciplinary presentation of the analytical techniques involved in speciation. * Comprehensive coverage of key elements and compounds in situ * Addresses the analysis and impact of these elements and compounds, e.g. arsenic, lead, copper, iron, halogens, etc., in food, the environment, clinical and occupational health * Detailed methodology and data are reported, as well as regulatory limits * Includes general introduction on the impact in these key areas