Analytical Chemistry of Complex Matrices is an introduction for the analytical scientist to analytical problems concerned with the identification and determination of organic, inorganic and organometallic analytes in complex matrices of topical importance such as the atmosphere, factory air, natural waters, industrial effluents, drinking water, plants, soils, minerals, foods and industrial products. It is assumed that the analytical scientist is already familiar with the theory and practice of a wide range of analytical methods and techniques such as are available in the many text- 1 books of analytical chemistry/science, as outlined by Locke and Grossman. It is intended that this text should fill a void in analytical chemistry/science, since there is currently a distinct lack of educational literature dedicated to the evaluation and solution of the aforementioned analytical problems. This text has therefore been written with this end in mind and is based on the author's experiences in teaching and research in analytical chemistry/science to final-year undergraduate and post- graduate students in universities in London, Aarhus, Buffalo, Cork, Turku, Haifa, Belfast, Lusaka and Coleraine. The text covers a wide range of analytical techniques from classical gravimetry and titrimetry, which illustrate basic chemical principles to the undergraduate, to instrumental techniques such as UV-visible spectrophotometry, IR spectrometry, spectrofiuorimetry, gas chromatography, potentiometry and polarography used by undergraduates and postgraduates in most university teaching and research laboratories.