OPTIMIZATION OF SOLID-PHASE EXTRACTION FOR TRACE ANALISYS OF ORGANIC UV FILTERS IN WATER

IX Regionalna konferencija Industrijska energetika i zaštita životne sredine u zemljama Jugoistočne Evrope (str. 325-331)

АУТОР(И) / AUTHOR(S): Jelena D. Stojaković, Zorana Z. Đuraš, Tatjana M. Đurkić, Antonije E. Onjia

САЖЕТАК / ABSTRACT:

Organic UV filters are substances widely used as active ingredients in cosmetic products for protection against solar radiation. The frequent application of sunscreens containing multiple UV filters has led to their extensive release into the aquatic environment, posing adverse effects on aquatic organisms. There is a reason for concern about their presence in the environment due to their persistence and potential bioaccumulation in organisms, as well as their negative impact on the endocrine systems of humans and animals. Low concentrations of UV filters in natural waters make their detection challenging, thus requiring the selection of appropriate sample preparation techniques for analysis. This work aims to optimize solid-phase extraction for the analysis of selected UV filters in water. Organic UV filters commonly used as active ingredients in sunscreens were selected for analysis. High-performance liquid chromatography coupled with tandem mass spectrometry was used to identify and quantify the analytes. Five factors that are most significant for the efficiency of solid-phase extraction (sample volume and pH-value, salt concentration in the sample, eluent type and volume) were optimized. The optimized sample preparation technique enabled the examination of fiveselected UV filters with high extraction yields (75%–112%) and an enrichment factor of 150, allowing for trace-level analysis of these chemicals in water.

КЉУЧНЕ РЕЧИ / KEYWORDS:

SPE, organic UV filters, LC-MS/MS

ACKNOWLEDGEMENTS

Ovaj rad podržalo je Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (Broj ugovora 451-03-65/2024-03/200135 i 451-03-66/2024-03/200287).

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