Research output: Contribution to journal › Article › peer-review
Distribution of 210Ро in lichen thalli. / Puchkova, E. V.; Eremin, V. V.; Bogdanova, O. G.; Himelbrant, D. E.; Stepanchikova, I. S.
In: Radiochemistry, Vol. 59, No. 2, 01.03.2017, p. 215-218.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Distribution of 210Ро in lichen thalli
AU - Puchkova, E. V.
AU - Eremin, V. V.
AU - Bogdanova, O. G.
AU - Himelbrant, D. E.
AU - Stepanchikova, I. S.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Distribution of 210Po in thalli of soil and wood (epiphytic) lichens was studied. Four fractions containing the corresponding 210Ро forms were obtained by sequential extraction: (1) intercellular, (2) extracellular, (3) intracellular, and (4) insoluble thallus residue. The 210Ро uptake by lichens is mainly passive, as the total content of the radionuclide in fractions 1, 2, and 4 reaches 88–97%. From 3 to 12% of 210Ро is taken up actively (fraction 3), and for soil lichens this parameter is approximately 2.75 times higher than for epiphytic lichens. Presumably, 210Ро is supplied into soil and epiphytic lichens in the form of different chemical compounds and is therefore characterized by different bioavailability.
AB - Distribution of 210Po in thalli of soil and wood (epiphytic) lichens was studied. Four fractions containing the corresponding 210Ро forms were obtained by sequential extraction: (1) intercellular, (2) extracellular, (3) intracellular, and (4) insoluble thallus residue. The 210Ро uptake by lichens is mainly passive, as the total content of the radionuclide in fractions 1, 2, and 4 reaches 88–97%. From 3 to 12% of 210Ро is taken up actively (fraction 3), and for soil lichens this parameter is approximately 2.75 times higher than for epiphytic lichens. Presumably, 210Ро is supplied into soil and epiphytic lichens in the form of different chemical compounds and is therefore characterized by different bioavailability.
KW - polonium uptake by lichens
KW - polonium-210
KW - α-ray spectrometry
UR - http://www.scopus.com/inward/record.url?scp=85018360718&partnerID=8YFLogxK
UR - https://doi.org/10.1134/S1066362217020175
U2 - 10.1134/S1066362217020175
DO - 10.1134/S1066362217020175
M3 - Article
AN - SCOPUS:85018360718
VL - 59
SP - 215
EP - 218
JO - Radiochemistry
JF - Radiochemistry
SN - 1066-3622
IS - 2
ER -
ID: 9225389