Smart Energy and Sustainable Environment , ISSN 2668-957X
2021, Volume 24, Issue 2
Pages 89-96

https://doi.org/10.46390/j.smensuen.24221.441

INFLUENCE OF WATER EXTRACTION METHODS FROM ENVIRONMENTAL SAMPLES ON MEASURED TRITIUM LEVEL

Abstract

In order to validate the laboratory routine procedure of tritium activity concentration determination in tissue free water of environmental samples, parallel measurements were performed in water extracted from wild vegetation by two methods: azeotropic distillation and lyophilization (recommended by a French standard method). The sample humidity was established using the drying procedure to constant mass of the sample, and isotopic effect that may occur during lyophilization procedure was investigated by deuterium ratio determination in sample and extracted water. Traces of toluene in extracted water by azeotropic distillation made deuterium ration determination useless.

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