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OP17- Development of DLLME-SFOD/GC-MS Method for UV Filter DeterminationCemile Yücel1*, Serenay Ceren Tüzün1, Hasan Ertaş2, İlgi Karapınar1, F. Nil Ertaş2*1Dokuz Eylül University, Department of Environmental Engineering, Tınaztepe Campus, Izmir, Turkey2Ege University, Science Faculty, Department of Chemistry, Bornova, Izmir, Turkey*Corresponding Author: cemile.yucel@deu.edu.tr , fatma.nil.ersoyertas@ege.edu.trThe term of UV filters refers to a group of chemicals those absorb the ultraviolet light andsince they are widely used in plastic, paint, and rubber industry as well as the cosmetic sector,their levels in surface waters are increasing in last decades1. These compounds tend to accumulatein water, sewage sludge and biota and behave like an endocrine disruptor, altering the normalfunctioning of organisms2. Due to their harmful effects, UV filters have been included in theEuropean Union monitoring list (2015/495/EU) and therefore, their accurate and sensitiveanalysis in environmental samples is of great importance.Present study described a method development for selected group of UV filters including 2,4-dihydroxybenzophenone or benzophenone-1 (BP-1), Benzophenone-3 (BP-3), 3- Benzylidenecamphor (3BC), 2-ethyl hexyl-4-(dimethyl amino) benzoate (EDP), 2-ethyl-hexyl-4-trimethoxycinnamate(EHMC), Ethylhexyl salicylate (EHS), Homosalate (HMS), Isoamyl pmethoxycinnamate (IAMC), 4-Methylbenzylidene camphor (4-MBC) and Octocrylene (OC) insurface waters. The standard mixture was subjected to solidification of floating organic droplet(DLLME-SFOD) followed by injector port silylation coupled with gas chromatography – tandemmass spectrometry for determining organic UV filters in ultra pure water. A series of parameters,including injection port temperature, purge off time, pH of water, extraction solvent type anddispersive solvent type enhancing the response of the UV filters were systematically investigatedby using different statistical experimental design methods to determine the significant factors.References1.M. L. M. Silvia Diaz-Cruz, Damia` Barcelo, Trends in Analytical Chemistry, 27, (2008):873.2.M. Lorigo, M. Mariana, and E. Cairrao, Steroids, 131, (2018):46 |
