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A comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer sorbent based on manganese dioxide. / Semenishchev, Vladimir; Ishimbaeva, Elena; Rogozhnikov, Vitaly и др.
в: Journal of Radioanalytical and Nuclear Chemistry, Том 333, № 1, 2024, стр. 429-439.

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Semenishchev, Vladimir ; Ishimbaeva, Elena ; Rogozhnikov, Vitaly и др. / A comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer sorbent based on manganese dioxide. в: Journal of Radioanalytical and Nuclear Chemistry. 2024 ; Том 333, № 1. стр. 429-439.

BibTeX

@article{9ac9c902f6a748da9e089bf907a641a7,
title = "A comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer sorbent based on manganese dioxide",
abstract = "Thin-layer flat sorbents are used in analysis of alpha emitters allowing combine radionuclide separation and thin alpha source preparation into one stage. This work describes a comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer MnO2-CTA sorbent consisting of manganese dioxide coated onto cellulose triacetate. It was shown that pH dependences of Ra, U and Np sorption had S-type appearance with maximum in neutral and alkaline media that is typical for cation exchange mechanism of sorption. Sorption of Po and Pa was low over the whole pH range studied. Th showed unusual reverse S-type pH dependence of sorption with the maximum at pH 2.0–2.5 that can be explained by hydrolysis of thorium at pH > 4. Distribution coefficients of the isotopes were calculated using mathematical treatment of sorption isotherms. As it was shown on a real solid radioactive waste sample, the MnO2-CTA sorbent allowed separating Th-230 from Ra-226 and U-234, which emit alpha particles with similar energies. {\textcopyright} 2023, Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",
author = "Vladimir Semenishchev and Elena Ishimbaeva and Vitaly Rogozhnikov and Titova, {Svetlana M.} and Skripchenko, {Sergey Yu.} and Nalivaiko, {Ksenia A.}",
note = "The work was supported by the Russian Science Foundation No. 22-29-00846, https://rscf.ru/en/project/22-29-00846/",
year = "2024",
doi = "10.1007/s10967-023-09269-6",
language = "English",
volume = "333",
pages = "429--439",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
issn = "0236-5731",
publisher = "Springer",
number = "1",

}

RIS

TY - JOUR

T1 - A comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer sorbent based on manganese dioxide

AU - Semenishchev, Vladimir

AU - Ishimbaeva, Elena

AU - Rogozhnikov, Vitaly

AU - Titova, Svetlana M.

AU - Skripchenko, Sergey Yu.

AU - Nalivaiko, Ksenia A.

N1 - The work was supported by the Russian Science Foundation No. 22-29-00846, https://rscf.ru/en/project/22-29-00846/

PY - 2024

Y1 - 2024

N2 - Thin-layer flat sorbents are used in analysis of alpha emitters allowing combine radionuclide separation and thin alpha source preparation into one stage. This work describes a comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer MnO2-CTA sorbent consisting of manganese dioxide coated onto cellulose triacetate. It was shown that pH dependences of Ra, U and Np sorption had S-type appearance with maximum in neutral and alkaline media that is typical for cation exchange mechanism of sorption. Sorption of Po and Pa was low over the whole pH range studied. Th showed unusual reverse S-type pH dependence of sorption with the maximum at pH 2.0–2.5 that can be explained by hydrolysis of thorium at pH > 4. Distribution coefficients of the isotopes were calculated using mathematical treatment of sorption isotherms. As it was shown on a real solid radioactive waste sample, the MnO2-CTA sorbent allowed separating Th-230 from Ra-226 and U-234, which emit alpha particles with similar energies. © 2023, Akadémiai Kiadó, Budapest, Hungary.

AB - Thin-layer flat sorbents are used in analysis of alpha emitters allowing combine radionuclide separation and thin alpha source preparation into one stage. This work describes a comparative study of sorption of microamounts of Ra, Po, U, Th, Np and Pa by a thin-layer MnO2-CTA sorbent consisting of manganese dioxide coated onto cellulose triacetate. It was shown that pH dependences of Ra, U and Np sorption had S-type appearance with maximum in neutral and alkaline media that is typical for cation exchange mechanism of sorption. Sorption of Po and Pa was low over the whole pH range studied. Th showed unusual reverse S-type pH dependence of sorption with the maximum at pH 2.0–2.5 that can be explained by hydrolysis of thorium at pH > 4. Distribution coefficients of the isotopes were calculated using mathematical treatment of sorption isotherms. As it was shown on a real solid radioactive waste sample, the MnO2-CTA sorbent allowed separating Th-230 from Ra-226 and U-234, which emit alpha particles with similar energies. © 2023, Akadémiai Kiadó, Budapest, Hungary.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85177702268

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001114763500001

U2 - 10.1007/s10967-023-09269-6

DO - 10.1007/s10967-023-09269-6

M3 - Article

VL - 333

SP - 429

EP - 439

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0236-5731

IS - 1

ER -

ID: 51654783