The review examines the methods for determining the main forms of arsenic in various waters. The main attention was paid to the determination of inorganic forms of As(III) and As(V) using hybrid methods, that combines the separation and spectroscopic determination of analytes. The possibilities and limitations of using liquid and solid-phase extraction methods to prepare water samples for analysis with preservation of analyte speciation, as well as electrophoretic methods, various options for chromatographic separation, and hydride generation method are considered. It has been shown that research on this issue should be developed in the direction of improving sample preparation in order to obtain more selective, environmentally friendly, simple, and highly productive methods for analyzing natural waters to ensure the determination of arsenic species in a wide range of concentrations. Considerable attention is paid to the combination of separation and final determination of the analyte by inductively coupled plasma mass spectrometry since this combination provides the highest sensitivity for the determination of various forms of arsenic.
Temerdashev et al. (Fri,) studied this question.