Abstract
The analytical applications of alginates, obtained from the marine algae Laminaria, for the pre-concentration of 90Sr from natural waters was studied. The sorption capacity for strontium in the samples investigated reached 30 mmol kg −1. The alginate sorbents were tested with sea water from the north-western part of the Black Sea over a wide range of salinity. The limit of detection for 90Sr in sea water with a salinity of 15‰ < 1 mBq dm −3 . The sorbents described are waste products of alginate manufacture and have a relatively low cost which considerably reduces the total costs of the analysis.
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