Nitromethane and other quenching agents used to determine the tritium activity concentration by liquid scintillation spectroscopy

作者：Varlam Carmen; Faurescu I; Vagner Irina; Faurescu Denisa; Duliu O G^*

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 303(1): 789-795.

DOI：10.1007/s10967-014-3364-y

• Tritium
• Liquid scintillator
• Quenching factor

The quenching properties of nitromethane, nitric acid, acetone and saturated solutions of chloroform, carbon tetrachloride, dichloro-methane, and a blend of carbon tetrachloride and chloroform mixed with an Ultima Gold uLLT liquid scintillation cocktail were investigated by using a Quantulus 1220 as well as TRICARB 2800TR liquid scintillation counters. With respect to all investigated quenching agents, nitromethane showed higher quenching action and solubility as well as a remarkable time stability. The implications of this finding for further routine tritium determinations are presented and discussed.

• 出版日期2015-1