Contemporary Use of Azophenolates and Related Species in the Determination of Metal Cations

Abstract

The chapter deals with the contemporary use of azophenolates and related species in the determination of metal ions. Structural variety of azophenolates is discussed. Many of the metals have more than one oxidation state (valence). Only one oxidation state was chosen for each metal (atomic number between 3 and 56) as an example. Principles of the procedures in which azophenolate reagents are used for analytical purposes are described, and important details on individual analytical procedures are listed. Keywords: contemporary; metal cations; azophenolates; determination; methods