The world's most comprehensive reference for clinical and forensic toxicologists has once more been extensively updated: 2,000 data sets have been added for a total of 10,430 spectra of potentially harmful substances, including 7,800 from metabolites. In two hardbound volumes, the printed atlas contains a comprehensive listing of full reference mass spectra in order or molecular mass with the structural formula, exact mass, GC retention times and other experimental data that are relevant to the analytical toxicologist. To aid in compound identification, all substances are classified according to their toxicological categories. In addition, volume 1 contains an overview on experimental methods, plus a compound index by name. An electronic database for use with all major mass spectrometers is also available. For details, please visit www.wiley.com/go/databases.