The Collection and Flame Photometric Determination of Cesium

Traces of cesium can be concentrated from large volumes of water by batch adsorption on ammonium 12molybdophosphate (AMP). Al3+ is used as a flocculant to facilitate collection of the AMP. The solids are dissolved in NaOH, Cs is extracted with a hexone-cyclohexane solution of sodium tetraphenyl boro...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 1964-02, Vol.36 (2), p.405-409
Main Authors: Feldman, Cyrus, Rains, T. C
Format: Article
Language:English
Subjects:
ADSORPTION
ALUMINUM COMPOUNDS
AMMONIUM COMPOUNDS
BORON COMPOUNDS
CESIUM
CHEMISTRY
COMBUSTION
CYCLOALKANES
EFFICIENCY
ENRICHMENT
KETONES
MINERALS
MOLYBDENUM PHOSPHATES
ORGANOMETALLICS
PHENYL RADICALS
PHOTOMETRY
PRECIPITATION
QUANTITATIVE ANALYSIS
RESIDUES
SEA
SODIUM HYDROXIDES
SOLUTIONS
SOLVENT EXTRACTION
TISSUES
TRACE AMOUNTS
WATER
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Summary:Traces of cesium can be concentrated from large volumes of water by batch adsorption on ammonium 12molybdophosphate (AMP). Al3+ is used as a flocculant to facilitate collection of the AMP. The solids are dissolved in NaOH, Cs is extracted with a hexone-cyclohexane solution of sodium tetraphenyl boron, and the extract is burned in a flame photometer. The limit of detection is 0.005 mu g Cs per ml of the solution burned. If the collection procedure is applied to an 8-liter water sample, this corresponds to a detection limit of 6 x 10-6 mu g per ml of the water. With minor modifications the procedure can also be applied to sea water, tissue ash, and minerals.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac60208a051