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2016, vol. 5, br. 1, str. 31-38
Ispitivanje mogućnosti primene različitih adsorbenasa i smeša rastvarača u pripremi uzoraka ZA GC/GC-MS analizu policikličnih aromatičnih ugljovodonika
Univerzitet u Nišu, Prirodno-matematički fakultet, Odsek Hemija, Srbija

e-adresajelena.cvetkovic7@gmail.com
Projekat:
Prirodni proizvodi biljaka i lišajeva: izolovanje, identifikacija, biološka aktivnost i primena (MPNTR - 172047)

Ključne reči: PAU; GC/GC-MS; priprema uzoraka; dSPE; adsorbens
Sažetak
Analiza policikličnih aromatičnih ugljovodonika (PAU) u složenim uzorcima zahteva prethodnu pripremu uzoraka. U ovom radu opisana je metoda ekstrakcije dispergovanom čvrstom fazom, kao koraka u pripremi uzoraka. Korišćene su tri smeše rastvarača i tri različita adsorbensa (PSA, C18 i PS-DVB) u cilju određivanja uticaja smeše rastvarača/adsorbensa na tačnost celokupne analize. Recovery-vrednosti varirale su u zavisnosti od adsorbensa i analiziranih jedinjenja. Najveća srednja recovery-vrednost zabeležena je za smešu cikloheksan/aceton - C18 (58.45%), sa najvećim pojedinačnim vrednostima za naftalen (76.05%), fluoranten (80.22%) i benzo[g,h,i]perilen (71.77%). Slične srednje recovery-vrednosti zabeležene su za kombinacije cikloheksan/aceton-PS-DVB (55.50%) i cikloheksan/aceton-PSA (55.30%). Smeša cikloheksana i acetona dala je najviše vrednosti sa sva tri korišćena adsorbensa, pa može biti korišćena u ekstrakciji PAU. Iako recoveryvrednosti nisu na visokom nivou, mogu poslužiti kao osnova za dalja istraživanja, s obzirom na to da PS-DVB, prema saznanjima autora, nije ranije korišćen u pripremi uzoraka za analizu PAU-a.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/savteh1601031C
objavljen u SCIndeksu: 15.07.2016.

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