Distribution of 210Ро in lichen thalli
- Авторы: Puchkova E.1, Eremin V.1, Bogdanova O.2, Gimel’brant D.1, Stepanchikova I.1
-
Учреждения:
- Chemical Faculty
- Khlopin Radium Institute
- Выпуск: Том 59, № 2 (2017)
- Страницы: 215-218
- Раздел: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/223874
- DOI: https://doi.org/10.1134/S1066362217020175
- ID: 223874
Цитировать
Аннотация
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.
Ключевые слова
Об авторах
E. Puchkova
Chemical Faculty
Автор, ответственный за переписку.
Email: evpuchkova@yandex.ru
Россия, Universitetskii pr. 26, St. Petersburg, 198504
V. Eremin
Chemical Faculty
Email: evpuchkova@yandex.ru
Россия, Universitetskii pr. 26, St. Petersburg, 198504
O. Bogdanova
Khlopin Radium Institute
Email: evpuchkova@yandex.ru
Россия, 2-i Murinskii pr. 28, St. Petersburg, 194021
D. Gimel’brant
Chemical Faculty
Email: evpuchkova@yandex.ru
Россия, Universitetskii pr. 26, St. Petersburg, 198504
I. Stepanchikova
Chemical Faculty
Email: evpuchkova@yandex.ru
Россия, Universitetskii pr. 26, St. Petersburg, 198504