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Information × Registration Number 0225U002199, (0124U001100) , R & D reports Title Novel selective indicator systems for assessing the state of the marine environment of Ukraine popup.stage_title Розробка рецептур селективних крапельних індикаторних систем та вибір і розробка методик синтезу твердофазних індикаторних систем Head Kyrii Svitlana O., к.т.н. Registration Date 24-02-2025 Organization National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» popup.description1 The goal of the project: the development of novel selective indicator systems (liquid and solid) for the determination of pollutants defined by seawater quality descriptors; monitoring of the state of the marine environment of Ukraine using novel indicator systems; development of innovative and effective measures for the remediation of the Black and Azov Seas. popup.description2  As part of the reporting phase, liquid-phase indicator systems (drop tests) were developed for the rapid detection of pollutants such as biogenic components (ammonium, nitrite, phosphate) and heavy metal ions (iron (both total and individual forms), nickel, aluminium, lead, etc.) For this purpose, we have compared various chromogenic compounds, and selected the most suitable chromogenic compounds for use in indicator systems (intense colours, easy visual identification at different pollutant concentrations and high selectivity), and the optimal concentrations of auxiliary reagents (pH regulators, masking compounds) and found optimal conditions for holding after mixing all components. To develop solid-phase indicator systems, we have synthesised more than 100 samples of ceramic membrane matrices from various raw materials, including Ukrainian clay minerals, investigated their properties, and selected the optimal matrix composition. A selected selective layer was applied to the obtained matrices, which was further modified with the Griess reagent for the selective detection of nitrite in water. We collected 23 water samples from the Black Sea and its flowing rivers, analysed them at the Department of TIS, WT and GCT, and selected a list of the most polluted locations where it would be advisable to test the developed indicator systems in the field. Product Description popup.authors Bohdan Liudmyla O. Bubela Halyna S. Hutsul Khrystyna R. Kyrii Svitlana O. Klimenkov Oleksii M. Kurylenko Viktor S. Litynska Marta I. Misevych Anna O. Tereshkov Mykhail V. Yuzupkina Yevheniia E. popup.nrat_date 2025-02-24 Close