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001-es BibID:	BIBFORM119494
035-os BibID:	(WoS)000813726700001 (Scopus)85140072614
Első szerző:	Molnár Anita
Cím:	Determination of the total 14c concentration of water samples using the COD method and AMS / Molnár Anita, Molnár Mihály, Veres Mihály, Czébely Andrea, Rinyu László, Rozmanitz Péter Jakab, Janovics Róbert
Dátum:	2022
ISSN:	0033-8222
Megjegyzések:	Radiocarbon (14C) is the one of the most important radionuclides released from the nuclear facilities to the environment. Currently, inorganic 14C is checked during regular environmental monitoring as part of the groundwater monitoring program of the Paks Nuclear Power Plant. Several studies have shown that organic 14C can be also an important and sensitive tool for detection of possible leakage of nuclear technological systems. For this reason, a wet oxidation method was developed for the accelerator mass spectrometry (AMS) 14C measurement technique to determine the 14C activity concentration of the total dissolved carbon content of water samples, coming from environmental monitoring wells. The overall efficiency of the oxidation was around 94 ? 5% for different types of tested organic compounds. The typical 14C background (1?2 pMC) is obtained by preparation of blank samples, which allows a detection level of around 5?10?5 Bq L?1. The activity of the organic fraction can be calculated using the formula presented in the study. The method was applied for water samples deriving from environmental monitoring wells of a pressurized-water reactor (PWR) type of NPP. The results of our investigations over the 14 different water samples around the Paks NPP show that DO14C contribution to the total 14C activity concentration was between 5-25%.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk AMS COD groundwater nuclear power plant total dissolved 14C.
Megjelenés:	Radiocarbon. - 64 : 5 (2022), p. 1065-1074. -
További szerzők:	Molnár Mihály Veres Mihály (fizikus) Czébely Andrea (1983-) (biológus) Rinyu László (fizikus) Rozmanitz Jakab Péter Janovics Róbert (1984-) (környezetkutató)
Pályázati támogatás:	KDP_2020 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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