Method for the quantification of 227AC in 223RA compositions
US9874550B2 · kind B2 · utility
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3References
18Claims
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Key dates
| Filing date | Aug 13, 2014 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Aug 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21G2001/0089
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for the quantification of 227Ac in a 223Ra composition comprising passing the composition through a first solid phase extraction column A, wherein said column comprises a thorium specific resin, passing the eluate of column A through a second solid phase extraction column B, wherein said column comprises an actinium specific resin and recovering the 227Ac absorbed onto the resin in column B and determining the amount thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.