Speciation analysis of 129I, 137Cs, 232Th, 238U, 239Pu and 240Pu in environmental soil and sediment

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Speciation analysis of 129I, 137Cs, 232Th, 238U, 239Pu and 240Pu in environmental soil and sediment. / Qiao, Jixin; Hansen, Violeta; Hou, Xiaolin; Aldahan, Ala; Possnert, Göran.

In: Applied Radiation and Isotopes, Vol. 70, No. 8, 2012, p. 1698-1708.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Qiao, Jixin; Hansen, Violeta; Hou, Xiaolin; Aldahan, Ala; Possnert, Göran / Speciation analysis of 129I, 137Cs, 232Th, 238U, 239Pu and 240Pu in environmental soil and sediment.

In: Applied Radiation and Isotopes, Vol. 70, No. 8, 2012, p. 1698-1708.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{f1e75c29eb2e4bbeb2805b6178d7fab3,
title = "Speciation analysis of 129I, 137Cs, 232Th, 238U, 239Pu and 240Pu in environmental soil and sediment",
keywords = "Sequential extraction, Soil, Sediment, Partitioning, Mobility, Bioavailability",
publisher = "Pergamon",
author = "Jixin Qiao and Violeta Hansen and Xiaolin Hou and Ala Aldahan and Göran Possnert",
year = "2012",
doi = "10.1016/j.apradiso.2012.04.006",
volume = "70",
number = "8",
pages = "1698--1708",
journal = "Applied Radiation and Isotopes",
issn = "0969-8043",

}

RIS

TY - JOUR

T1 - Speciation analysis of <sup>129</sup>I, <sup>137</sup>Cs, <sup>232</sup>Th, <sup>238</sup>U, <sup>239</sup>Pu and <sup>240</sup>Pu in environmental soil and sediment

A1 - Qiao,Jixin

A1 - Hansen,Violeta

A1 - Hou,Xiaolin

A1 - Aldahan,Ala

A1 - Possnert,Göran

AU - Qiao,Jixin

AU - Hansen,Violeta

AU - Hou,Xiaolin

AU - Aldahan,Ala

AU - Possnert,Göran

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - <p>The environmental mobility and bioavailability of radionuclides are related to their physicochemical forms, namely species. We here present a speciation analysis of important radionuclides including <sup>129</sup>I (also <sup>127</sup>I), <sup>137</sup>Cs, <sup>232</sup>Th, <sup>238</sup>U and plutonium isotopes (<sup>239</sup>Pu and <sup>240</sup>Pu) in soil (IAEA-375) and sediment (NIST-4354) standard reference materials and two fresh sediment samples from Øvre Heimdalsvatnet Lake, Norway. A modified sequential extraction protocol was used for the speciation analysis of these samples to obtain fractionation information of target radionuclides. Analytical results reveal that the partitioning behaviour, and thus the potential mobility and bioavailability, are exclusively featured for the individual radionuclide. Iodine is relatively mobile and readily binds to organic matter, while plutonium is mainly bound to both organic matter and nitric acid leachable fractions. Thorium is predominated in nitric acid leachable fraction and caesium is primarily observed in nitric acid and aqua regia leachable fractions and residue. Our analytical results reveal that around 50% of uranium might still remain in the residue which could not be extracted with aggressive acid, namely, aqua regia.</p>

AB - <p>The environmental mobility and bioavailability of radionuclides are related to their physicochemical forms, namely species. We here present a speciation analysis of important radionuclides including <sup>129</sup>I (also <sup>127</sup>I), <sup>137</sup>Cs, <sup>232</sup>Th, <sup>238</sup>U and plutonium isotopes (<sup>239</sup>Pu and <sup>240</sup>Pu) in soil (IAEA-375) and sediment (NIST-4354) standard reference materials and two fresh sediment samples from Øvre Heimdalsvatnet Lake, Norway. A modified sequential extraction protocol was used for the speciation analysis of these samples to obtain fractionation information of target radionuclides. Analytical results reveal that the partitioning behaviour, and thus the potential mobility and bioavailability, are exclusively featured for the individual radionuclide. Iodine is relatively mobile and readily binds to organic matter, while plutonium is mainly bound to both organic matter and nitric acid leachable fractions. Thorium is predominated in nitric acid leachable fraction and caesium is primarily observed in nitric acid and aqua regia leachable fractions and residue. Our analytical results reveal that around 50% of uranium might still remain in the residue which could not be extracted with aggressive acid, namely, aqua regia.</p>

KW - Sequential extraction

KW - Soil

KW - Sediment

KW - Partitioning

KW - Mobility

KW - Bioavailability

U2 - 10.1016/j.apradiso.2012.04.006

DO - 10.1016/j.apradiso.2012.04.006

JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

SN - 0969-8043

IS - 8

VL - 70

SP - 1698

EP - 1708

ER -