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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 226 (1967), S. 114-122 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zur schnellen Abtrennung von Caesium aus Spaltprodukten werden zwei Methoden beschrieben, die rubidiumfreie Präparate ergeben: Beim ersten Verfahren wird Caesium zweimal aus schwach saurer Lösung als Tetraphenyloborat gefällt und dann durch Fällung des Caesiumwismutjodids aus Essigsäure vom Rubidium getrennt; beim zweiten, schnelleren Verfahren wird Caesium durch Isotopenaustausch an Caesiumphosphormolybdat in 8 n Salpetersäure isoliert und dann als Wismutjodid gereinigt. Die Anwendung dieser Methoden zum Studium der Nuklide 9,5 min 139Cs, 65 sec 140Cs, 24 sec 141Cs und 18 min 141Ba wird kurz erörtert.
    Notes: Summary Two fast separation methods of caesium from fission products are described which yield rubidium-free samples. In the first method caesium is twice precipitated as tetraphenyloborate from weak acid solution and than purified from rubidium by precipitating caesium bismuth iodide from acetic acid solution. In the second, faster method caesium is isolated by isotopic exchange with preformed caesium phosphomolybdate in 8 N nitric acid and than purified as caesium bismuth iodide. The application of these methods in decay scheme studies of 9.5 min 139Cs, 65 sec 140Cs, 24 sec 141Cs and 18 min 141Ba is briefly discussed.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 1967-01-01
    Print ISSN: 0016-1152
    Topics: Chemistry and Pharmacology
    Published by Springer
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