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A Modification of the Benzene Synthesis Method for Tritium Analysis
Author(s) -
Wallick Edward I.,
Knauer George A.
Publication year - 1970
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr006i003p00986
Subject(s) - tritium , liquid scintillation counting , benzene , radiochemistry , acetylene , quenching (fluorescence) , chemistry , nuclear physics , physics , organic chemistry , fluorescence , quantum mechanics
A modification of the benzene synthesis method for tritium analysis by liquid scintillation counting is suitable for limited production of hydrologic samples and has a lower detection limit of 10 TU (1 TU = 10 −18 T/H). Procedures are described for elimination of sulfide quenching of the benzene and optimization of the acetylene‐benzene conversion. Tritium isotopic fractionation is constant during benzene synthesis with a loss of (19.3 ± 0.2)% of the water sample tritium activity. Cross checks with other laboratories agree within counting statistical error.