Coprecipitation as a means for the determination of zirconium traces by isotope dilution analysis in the presence of substoichiometric amounts of complexones |
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| Authors: | L D Akol'zina I P Alimarin G N Bilimovich N N Churkina |
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| Institution: | (1) Vernadsky Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences, Moscow, USSR |
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| Abstract: | The possibility of using coprecipitation on Cu(OH)2·nH2O and Fe2O3·nH2O precipitates to separate a part of zirconium unreacted with complexone in the presence of a 100-fold amount of impurities
has been examined. The reaction between ethylenedia-minetetraacetic acid (EDTA) and zirconium 10−3−10−5 M has been used as substoichiometric reaction. A zirconium determination in the concentration range of 10−4−10−6 g/ml in artificial mixtures and steel samples has been developed using the systems of EDTA-Zr−Cu(OH)2·nH2O and EDTA−Zr−Fe2O3·nH2O. |
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