Matorina K. Modification of analytic organic reagents by electrolytes and polyelectrolytes

Investigation objects: interaction of associates {R*polyvinylpyrrolidone (PVP)}as with metal ions, binary complexes (R-Ме) with PVP and inorganic salts, cationic polyelectrolyte polyhexamethylene chloride ( PHMC) or medias of organic solvents; interaction of cationic dyes with polymers (PVP, polyvinyl alcohol (PVA)). Objectives: development of complex spectrophotometric techniques for determination of PVP higher molecular fractions and ions of heavy metals against the background of inorganic salts; making of potentiometric sensors which are reversible for PVP and ions of heavy metals, on the basis of associates of cationic dyes with PVP and triple metal-polymer complexes (TMPC). Methods and apparatus: spectrophotometry, spectrophotometric titration, potentiometry, chemical methods. Theoretical and practical results: indicated performance of using TMPC which are modificated by inorganic electrolytes and polyelectrolytes for spectrophotometric determination of uranium (VI) containing in colliery water, copper (II) in drinking water and aluminium alloys, small molecular PVP in "Neohemodez", middle molecular mass of PVP. TMPC and associates {cationic dye*PVP} had been developed as electrode-active components of membranes for potentiometric determination of PVP (М=3,6*10^5) and ions of heavy metals. Techniques of potentiometric determination of PVP higher molecular mass with polyvinylpyrrolidone-selective electrodes in solutions of medicines and bioliquids (urine, without separation of protein) had been developed. Novelty: is affirms by Ukrainian patent on invention. Ratio of components in TPMC by spectrophotometric titration had been determined. First it is establish that influence of inorganic electrolytes, polyelectrolyte PHMG and organic solvents which are defers by dielectric constants on the chemical-analytical properties of TPMC is similar. Associates of cationic dyes with PVP or PVA had been established. It is shown that adding of PVP in solution change of hydration character of metal ions; contribution of nonhydrolysis metal ions in TMPC which are received by interaction associate {R*PVP} with metal ions as compared with binary complexes (Ме-R) increase. The degree of application: materials of dissertation had been implemented in training of Analytical Chemical Department of Dnipropetrovsk National University by Oles Honchar (specific course "Analysis of medicines" and "Analytical Chemistry of environment"). Area (branch) of using: laboratories and departments of trainings and scientific departments in which carry out research for close objects.