Linnik R. Hyphenated spectroscopic methods for the determination of vanadium, iron, cobalt and copper speciation in natural water

Vanadium, iron, cobalt and copper speciation in natural waters. To development and realization of scientific-methodological approaches of investigation of metal speciation in natural waters with uses hyphenated spectroscopic methods. The methods of membranous filtration, ion-exchange and gel-permeation chromatography in a combination to photochemical oxidation of organic metal complexes and chemiluminescent analysis, UV/Vis- and solid-phase spectrophotometry. The mathematical modeling of Fe(III), Co(II) and Cu(II) distribution among the coexistіng forms in natural waters is carried out. The content and ratio of the V (IV, V), Fe (III), Co (II), Cu (II) dissolved species are determined. The role of various groups of organic matters in the complexation of metals investigated is established. The technique of sorption-spectroscopic determination of free copper ions in natural waters is developed.