Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 277: Issue 3
Accumulation and release of 99Tc by a macrophyte of the Yenisei River ( Elodea canadensis ) in laboratory experiments
Authors:
A. Bolsunovsky Siberian Branch of the Russian Academy of Sciences Institute of Biophysics Krasnoyarsk 660036 Russia

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L. Bondareva Siberian Branch of the Russian Academy of Sciences Institute of Biophysics Krasnoyarsk 660036 Russia

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Pages:
631–636
Online Publication Date:
18 Apr 2008
Publication Date:
01 Sep 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10967-007-7148-5
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Abstract  

The study addresses 99Tc accumulation and release by Elodea canadensis, one of the abundant species of submerged plants in the Yenisei River 99Tc in water samples of the “Elodea-Yenisei River water” model system and in the biomass fractions was measured using a liquid scintillatio analyzer. Experiments on accumulation of 99Tc by Elodea showed that 99Tc activity concentration can reach 120±6 Bq/g dry wt, with concentration factor for 99Tc 2700±500 l/kg dry wt. In experiments on 99Tc release, over 504 hours about 82% of the total 99Tc activit released into the water from the plant; most of 99Tc was released within the first 192 hours. The data obtained using sequential chemica fractionation of biomass confirmed the experimental data on 99Tc release, which suggested that most of the biomass-bound 99Tc was adsorbed the surface of Elodea. 99Tc tightly bound to biomass (fractions of organics and mineral residue) constituted just 17% of the total 99Tc activity.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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