Environmental Liquid Scintillation Analysis

Tritium in water electrolytic enrichment and liquid scintillation counting

“…As it can be seen, the enrichment factors EFT determined by using the deuterium concentrations (measured by mass spectrometry) are in the range of 11.0-12.2 for l.e., and 21.4-22.9 for h.e., respectively, and in very good agreement with the literature (Cook et al, 1998).…”

“…At present, a certain degree of enrichment is essential to obtain adequate net tritium count rates for most of the water samples. Electrolysis is generally used for the enrichment process (Sauzay and Schell, 1972;Groeneveld, 1977;Taylor, 1977;Cook et al, 1998).…”

Radon leakage as a source of additional uncertainty in simultaneous determination of 226Ra and 228Ra by gamma spectrometry—Validation of analysis procedure

“…Both literature and measurement data confirm that this rarely occurs. Thorium concentrations in natural groundwaters are usually low (Jia et al, 2009;Chau et al, 2011;Lauria et al, 2012) due to its high insolubility and poor environmental mobility (Cook et al, 2003). Lack of thorium in the water analysed for this work was also confirmed by experimental data.…”

Radon concentrations in ground and drinking water in the state of Chihuahua, Mexico

“…All samples were analyzed for radon concentrations, using the method described by Chalubnik et al (1994) and Cook et al (1998). Radon in the samples was extracted using a liquid scintillation cocktail.…”