Determination of tri- and tetravalent ions with a divalent ion-selective electrode |
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| Authors: | Fu Chung Chang K.L. Cheng |
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| Affiliation: | Department of Chemistry, University of Missouri-Kansas City, Kansas City, Mo. 6411O U.S.A. |
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| Abstract: | A method of determining tri- and tetravalent ions with a divalent ion-selective electrode is proposed. The determination is based on displacement of the divalent metal ion from the Mg-EDTA or Zn-EDTA complex. The approximate ranges for direct measurement are 3·10-3–3·10-4M. Titrimetric methods are recommended for analysis of mixtures of metal ions. Optimal pH ranges and precision are discussed. |
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