Separation techniques used in radiochemical procedures

Irving, H. M. N. H.

doi:10.1007/bf02517732

Cited by 8 publications

(2 citation statements)

References 45 publications

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“…In every case there remains a certain spectrum masking by the interfering matrix activity and this deteriorates the detection limits. For elements present at concentrations below the instrumental detection limit post-irradiation radiochemical separation [34][35][36] can be carried out using solvent extraction, electrodeposition, distillation or ion-exchange chromatographic techniques. A simple but useful procedure to remove sodium and phosphorous from irradiated biological material is to pass the dissolved sample through hydrated antimony pentoxide and alumina columns, respectively [37].…”

Section: Procedures Of Neutron Activation Analysismentioning

confidence: 99%

On the Application of Neutron Activation Analysis in the Life Sciences

Βrätter¹

1983

Radiochimica Acta

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Section: Procedures Of Neutron Activation Analysismentioning

confidence: 99%

On the Application of Neutron Activation Analysis in the Life Sciences

Βrätter¹

1983

Radiochimica Acta

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“…Other general discussions of separations in inorganic analysis are given by Coomber (44) in a work cited in the last reporting period, by Irving (99), Ulrich and Hopke (237), and Zolotov (260). Selective adsorption reagents for collecting platinum metals have been reviewed by Malofeeva, Myasoedova, and co-workers in a series of papers (138,155,156).…”

Section: Separation and Concentrationmentioning

confidence: 99%

Inorganic and geological materials

Dinnin¹

1979

Anal. Chem.

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Separation of Uranium Mixing with its Decayed Nuclides and its Activated Nuclides

1990

J Chinese Chemical Soc

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Extractions of uranium from thc acidic mcdia, HCI and HNO3 at differcnt concentrations, by the tertiary amines, triiaurylarninc, triisooctyllaminc and trioctylamine wcre systematically investigated. In experiments, 232U was uscd as thc tracer and aliquots of both phases after extractions wcrc taken, ashed at XWC, placed onto stainlcss steel planchcts, and rneasurcd hy a surface-barricr Si(Li) detector connected to an alpha spectrometer.Oncuniquc condition found uscful for complctc scparation ofuranium was that oftheradioactivcuranium present in8 M HC1 bcingcxiractcd with 10% trilaurylamine inqlene. In khat case, greatcr than 95% of the uranium could be cxtracted into the organic solution, whereas vlt of thc radionuclides of a series of its decayed products, "%b, 224Ra, =OR,, 216Po and "'Bi remained completely in the aqueous solution. The same procedure could also be used for the scparation of uranium from a mixture with its activated nuclides. Plutonium239 and 241Am were used as the tracers representing the activated nuclides of uranium. It was found that 241Am was absolutely not extracted, but that 23Pu could be extractcd with >95% efficiency from the medium of 8 M HCI into 10% trilaurylamine in xylcnc. Howcvcr, 23yPv could be easily stripped using the solution mixture of 8 M HC1 and 0.05 M NH4I and cxcludcd from the organic solution.

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Separation techniques used in radiochemical procedures

Cited by 8 publications

References 45 publications

On the Application of Neutron Activation Analysis in the Life Sciences

On the Application of Neutron Activation Analysis in the Life Sciences

Inorganic and geological materials

Separation of Uranium Mixing with its Decayed Nuclides and its Activated Nuclides

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