The principle of the use of Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) in current analytical chemistry is the effective atomisation and excitation of sample analyses in the powerful plasma conditions and the subsequent determination of them by monitoring their emitted characteristic atomic spectra. This book presents the principles and the operational aspects of the techniques and capabilities of ICP-AES in the analysis of a variety of sample matrices by a selection of applications. This book is useful for institutional researchers, academics and post-graduate students, analysts working in routine analysis in industrial, state or private analytical laboratories, and to anyone interested in the atomic spectrometry field.