Naslov
Optimization of the direct LSC method for determination of biogenic component in liquids by applying 14C

Autori
Krajcar Bronić, Ines ; Sironić, Andreja ; Barešić, Jadranka ; Lovrenčić Mikelić, Ivanka ; Borković, Damir

Izvornik
Journal of radioanalytical and nuclear chemistry (0236-5731) 331 (2022), 8; 3289-3294

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
biogenic component ; liquid fuels ; radiocarbon method ; direct LSC ; optimization ; intercomparison

Sažetak
Determination of fraction of biogenic component in liquid fuels by a direct radiocarbon measurement in liquid scintillation counter (direct-LSC method) has been validated by participation in the international intercomparison exercise. All the results for samples with the standard quench parameter SQP(E) value above ≈ 650 were accepted. Highly quenched sample of used edible oil was diluted with the 14C-free petroleum ether to optimize the region of applicability. It was established that quantitative results were obtained for SQP(E) values above 700, while in the SQP(E) region between 700 and 600 only the qualitative results of fbio can be taken.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Interdisciplinarne prirodne znanosti

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