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Information × Registration Number 0220U102230, 0117U001204 , R & D reports Title New types of ion associates and complexes for the analysis of hydro objects of mining enterprises, pharmaceuticals, food popup.stage_title Head Vishnikin Andriy B., Доктор хімічних наук Registration Date 11-03-2020 Organization Oles Honchar Dnipro National University popup.description2 Object of study: processes of dye aggregation, formation of specific ionic associates (IA), microextraction (ME), analytical effects in the formation of IA with organic dyes, reactions of reduction of heteropoly compounds, formation of complex compounds of dimercaptothiopyrons (DMT) ith metal ions. Aim of the research: development of new effective methods of analysis of hydro-objects of mining industry, medicines and foodstuffs on the basis of the theory of use in chemical analysis of IA of new types, development of new methods of ME, application for determination of reducing agents of their reactions with heteropoly anions, and for platinum metals – their complexes with DMTs. Methods: spectrophotometry, electrochemical methods, atomic absorption spectroscopy, sequential injection analysis, microextraction methods. Results: spectral effects in the formation of IA organic dyes with heteropoly anions, anionic metal complexes, polyelectrolytes, nitrogen-containing active substances of drugs are explained in terms of a unified theory. The conditions for the formation of IA organic dyes were found, the optimal conditions for the determination of analytes were substantiated. A quantum-chemical method for the calculation of absorption spectra of polymethine dyes was developed. The basic variants of ME, including dispersion, vortex-, ME in a drop of organic solvent, have been improved. It was proposed to use an optical probe for ME. Peculiarities of metal sorption on sorbents modified with DMTs were found out. Spectrophotometric methods for determination of a number of ions of metals, non-metals, flocculants, nitrogen-containing substances in the form of IA have been developed and tested in the analysis of mine and surface waters, foodstuffs, medicines. New methods for simultaneous kinetic determination have been developed using automated flow analysis methods. The results have been implemented by State Enterprise «Ukrchormetgeologiya» and LLP «Aqua Holding Trading House». Product Description popup.authors Ivanytsia Lidiia O Belik Valentina M Denisenko Tatyana O Zhuk Larysa P Zaruba Sergii V Miekh Yuliia V. Matorina Katerina V Nosova Ludmila O Poltavets Veronika V. Sidorova Larisa P Smityuk Natalia M Tamen Aimad-Eddine T Hedjazi Mehieddine H Khudyakova Svitlana M Chernyavska Anna Yu popup.nrat_date 2020-04-02 Close