Proceedings of the International scientific and practical conference “Science, Technology and Culture: Strategies for Sustainable Development” (December 15-17, 2025) / Publisher website: www.naukainfo.com. – Krakow, Poland, 2025. – 120 p.

9 CHEMISTRY, CHEMICAL AND BIOENGINEERING UDC 543.3 Svitlana Mykolaivna Khudyakova Nataliia Viacheslavivna Kondratiuk PhD, Associate Professor Igor Alexandrovich Smahin postgraduate student Oles Honchar Dnipro National University Dnipro, Ukraine A NEW SOLID-PHASE REAGENT FOR THE INDIRECT DETERMINATION OF PALLADIUM BY FLAME ATOMIC ABSORPTION SPECTROMETRY To determine low levels of platinum metals, and in particular Pd, in various objects, it is important to choose an appropriate analytical method. Direct determination of microquantities of such metals in complex technological solutions, wastewater or in samples of various types of natural water by flame atomic absorption spectrometry (FAAS) or with electrothermic atomization (ETAAS including GFAAS) is practically impossible in a number of cases. Compared to existing spectrometric methods, FAAS has some extraordinary advantages: fast and acceptable response, relative simplicity and low cost. The use of sensitive and selective preliminary chemical reactions facilitates the development and application of indirect AAS, in particular FAAS, for the determination of analytes. At the same time, preliminary concentration, for example, sorption, allows simplifying the matrix