Non-intrusive and reliable speciation of organically bound tritium in environmental matrices - Institut Mines Télécom
Article Dans Une Revue Talanta Année : 2021

Non-intrusive and reliable speciation of organically bound tritium in environmental matrices

Résumé

Measurements of tritium in its various forms within the environment and especially in organic matter are keys to improving the current understanding of its environmental behavior and distribution. Validated or standardized analytical procedures for tritium determination methods have now been developed for several forms of tritium in environmental samples, yet an analytical lack remains regarding the quantifications of exchangeable and non-exchangeable forms of organically bound tritium (OBT) fractions. The present work therefore aims to provide a means of developing a standardized method for OBT fraction determination by evaluating the robustness and relevance of two methods (intrusive and non-intrusive methods) developed for non-exchangeable OBT quantification on a broad panel of pertinent environmental matrices. The validity and reliability of a non-intrusive method has thus been confirmed through a robust comparative study. Moreover, its relevance for standardization purposes is discussed, while the fundamental weakness of the conventional and most widespread method is highlighted and directly quantified for the first time in relying on many demonstrated biases.
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Dates et versions

hal-03137938 , version 1 (19-09-2024)

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Anne-Laure Nivesse, Nicolas Baglan, Gilles F Montavon, G. Granger, Olivier Peron. Non-intrusive and reliable speciation of organically bound tritium in environmental matrices. Talanta, 2021, 224, pp.121803. ⟨10.1016/j.talanta.2020.121803⟩. ⟨hal-03137938⟩
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