Preparation of solid phase extraction cartridges for trace analysis of radionuclides

Radionuclides are commonly determined with radiometry and mass spectrometry. For gamma-emitting nuclides, the activities can be measured without chemical separation due to the strong penetration ability. In contrast, the measurements of alpha and beta-emitting nuclides are generally associated with...

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Bibliographic Details
Published inBiomedical Research on Trace Elements Vol. 28; no. 1; pp. 1 - 10
Main Authors Asai, Shiho, Saito, Kyoichi
Format Journal Article
LanguageEnglish
Japanese
Published Osaka Japan Society for Biomedical Research on Trace Elements 22.05.2017
Japan Science and Technology Agency
Subjects
Adsorbents
Adsorption
Cartridges
Chains (polymeric)
Chemical separation
Diffusion
Diffusion rate
Extraction
Functional anatomy
Functional groups
graft polymerization
Grafting
High speed
ICP-MS
Ions
Mass spectrometry
Mass spectroscopy
Nuclides
Penetration
Permeability
Polymerization
Polymers
porous polymer
Radioisotopes
Radiometry
radionuclides
Separation
solid phase extraction
Solids
Surface chemistry
Workload
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Summary:Radionuclides are commonly determined with radiometry and mass spectrometry. For gamma-emitting nuclides, the activities can be measured without chemical separation due to the strong penetration ability. In contrast, the measurements of alpha and beta-emitting nuclides are generally associated with tedious and time-consuming chemical separation procedures to remove concomitants. Thus, an adsorbent that achieves rapid separation is desirable to reduce separation time and workload. Our research team has developed compact cartridge-type solid phase extraction materials which enable to facilitate separation procedures. A porous polymer sheet with high permeability was employed for the base materials. Polymer chains with functional groups were densely attached onto the pore surface of the porous polymer sheet by graft polymerization technique. This interfacial structure provides high-speed adsorption ensured by minimized diffusion paths of the target ions to the functional groups of the pore surface. In this review, basic separation performances of the developed cartridges were overviewed along with two application examples to radionuclide-containing samples.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0916-717X
1880-1404
DOI:10.11299/brte.28.1