Speciation of plutonium in potato and the gastrointestinal transfer of plutonium and americium from potato

Bulman, Robert A.; Johnson, Tracey E.; Ham, G. J.; Harrison, John; Clayton, Reg F.

doi:10.1016/0048-9697(93)90323-x

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…The reported absorption efficiencies vary widely. For example, the absorption efficiency for plutonium (Pu) was measured to differ by three orders of magnitude in animals (Bulman et al, 1993;Cooper & Harrison, 1982Harrison, 1991;Harrison et al, 1981Stather et al, 1979;Sullivan et al, 1985). To reduce the variability, we used absorption efficiencies determined by the same expert group, namely, the International Commission on Radiological Protection (ICRP) (Table 1; ICRP, 1989ICRP, , 1993ICRP, , 1995ICRP, , 2006.…”

Section: Data Collection and Selectionmentioning

confidence: 99%

Relationships between absorption efficiency of elements in mammals and chemical properties

Hendriks

2013

Critical Reviews in Toxicology

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Oral absorption efficiency is an important factor to consider in human risk assessment and varies widely between elements. Linking absorption efficiency to chemical properties facilitates the understanding of underlying processes and enables extrapolation across elements. In our study, oral absorption efficiency in humans was predicted for a number of elements based on their ionization energy and electronegativity. Data on oral absorption efficiency in humans were retrieved via a literature survey. A model was developed based on the assumption that ionic species readily react with biotic ligands. Accordingly, ionization energy was presumed to represent the reactivity and absorption of atoms in the gastrointestinal tract. The coefficients of the model were parameterized by fitting the quantitative relationship between absorption efficiency and ionization energy to data collected from well-standardized studies. Generally, absorption efficiency was strongly related to ionization energy, explaining 94% of the variability in absorption efficiency between elements reported by the International Commission on Radiological Protection (ICRP). In addition, the absorption efficiencies predicted based on ionization energy were within a factor of two of those given by the ICRP (ME = -0.05; RMSE = 0.31). However, the model is not applicable to alkaline metals and molybdenum because of the uniquely high solubility of their compounds or the flexible electron configuration of these elements. Approximately 56% of the variability in absorption efficiency between elements could be explained by electronegativity. These strong relationships between absorption efficiency and ionization energy and, to a lesser extent, electronegativity indicate potential for extrapolation across elements using atomic properties.

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Section: Data Collection and Selectionmentioning

confidence: 99%

Relationships between absorption efficiency of elements in mammals and chemical properties

Hendriks

2013

Critical Reviews in Toxicology

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Radiobiological Effects Of 241 Am Incorporated In Cells Of Organism And Methods Of Prevention Of The Menace Of Combined Toxicity Of The Transuranium Elements

Rashydov¹,

Berezhna²

New Techniques for the Detection of Nuclear and Radioactive Agents

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The gastrointestinal absorption of neptunium, plutonium and americium in a primate (C. jacchus)

Ham¹,

Harrison²,

Popplewell³

et al. 1994

Science of The Total Environment

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Speciation of plutonium in potato and the gastrointestinal transfer of plutonium and americium from potato

Cited by 5 publications

References 26 publications

Relationships between absorption efficiency of elements in mammals and chemical properties

Relationships between absorption efficiency of elements in mammals and chemical properties

Radiobiological Effects Of 241 Am Incorporated In Cells Of Organism And Methods Of Prevention Of The Menace Of Combined Toxicity Of The Transuranium Elements

The gastrointestinal absorption of neptunium, plutonium and americium in a primate (C. jacchus)

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