| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1246130 | Talanta | 2007 | 8 Pages |
Abstract
A new automatic method for preconcentration and separation of radium in water samples has been developed. Such method combines both multisyringe (MSFIA) and multi-pumping (MPFS) flow analysis techniques allowing to analyze larger sample volumes with a higher throughput than other previous methodologies. Ra adsorbed on MnO2, deposited on cotton fiber, is eluted with hydroxylamine and subsequently coprecipitated with BaSO4. 226Ra activity is determined off-line by using a low background proportional counter. The procedure yield is (90 ± 3)% and its lower limit of detection 0.05 Bq L−1. This method has been applied satisfactorily to different types of spiked water (tap, mineral and seawater).
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Y. Fajardo, E. Gómez, F. Garcias, V. Cerdà, M. Casas,