Uranium and thorium determination in water ecosystem components by neutron activation analysis.
Published in journal: «Water: chemistry and ecology» № 10 / 2009 , p. 36-40.
http://5bio5.blogspot.com/2016/09/uranium-and-thorium-determination-in.html
Summary:
Biogeneous detritus being formed more than for 7 months in microcosms with Viviparus viviparous, Unio pictorum, Ceratophyllum demersum, contained uranium and thorium. Concentrations of thorium and uranium in such detritus have been firstly changed. The concentration was changed by neutron activation analysis (NAA). New uranium concentrations in biogeneous detritus were 2.1-4.6 mg/kg (dry basis). Obtained data reveal biota’s multifunctional character in water ecosystems.
Biogeneous detritus being formed more than for 7 months in microcosms with Viviparus viviparous, Unio pictorum, Ceratophyllum demersum, contained uranium and thorium. Concentrations of thorium and uranium in such detritus have been firstly changed. The concentration was changed by neutron activation analysis (NAA). New uranium concentrations in biogeneous detritus were 2.1-4.6 mg/kg (dry basis). Obtained data reveal biota’s multifunctional character in water ecosystems.
Keywords: biogeochemistry, Ceratophyllum demersum, detritus, ecosystem, freshwater items, Lymnaea stagnalis, mollusc, Unio pictorum, uranium, Viviparus viviparous, water quality
Bibliographic link:
Ostroumov S.A. , Kolesov G.M. Uranium and thorium determination in water ecosystem components by neutron activation analysis // Water: chemistry and ecology. — 2009. — № 10. — c. 36-40. — http://watchemec.ru/en/article/13370/
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