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Conductometric performance of two - pole and five - ring conductivity cell probes for lanthanide determination using EDTA and DCTA as potential sequestering agents / Komal Matharu in Industrial & engineering chemistry research, Vol. 51 N° 35 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 35 (Septembre 2012) . - pp. 11328-11334 Titre : Conductometric performance of two - pole and five - ring conductivity cell probes for lanthanide determination using EDTA and DCTA as potential sequestering agents Type de document : texte imprimé Auteurs : Komal Matharu, Auteur ; Susheel K Mittal, Auteur ; S. K. Ashok Kumar, Auteur Année de publication : 2012 Article en page(s) : pp. 11328-11334 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Conductometric  Lanthanide Résumé : An improved conductometric titration method has been developed for the easy detection of lanthanides in the presence of interfering ions using a five-ring conductivity probe. These measurements were compared with those from a two-pole conductivity cell. Conductometric titrations of lanthanides with ethylenediaminetetraacetic acid (EDTA) and trans-1,2-diaminocyclohexanetetraacetic acid (DCTA) as complexing agents were successfully carried out in the presence of alkaline earth metal ions, transition metal ions, and other metal ions, such as Al3+ and Th4+, as interfering ions. The performance of the titrations of binary mixtures of Al(III) and lanthanides further improved and distinct end points corresponding to the stoichiometric ratio could be observed in mixed solvent media containing 1,4-dioxane (10―20%) which otherwise showed interference in aqueous media. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301141g [article] Conductometric performance of two - pole and five - ring conductivity cell probes for lanthanide determination using EDTA and DCTA as potential sequestering agents [texte imprimé] / Komal Matharu, Auteur ; Susheel K Mittal, Auteur ; S. K. Ashok Kumar, Auteur . - 2012 . - pp. 11328-11334. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 35 (Septembre 2012) . - pp. 11328-11334 Mots-clés : Conductometric  Lanthanide Résumé : An improved conductometric titration method has been developed for the easy detection of lanthanides in the presence of interfering ions using a five-ring conductivity probe. These measurements were compared with those from a two-pole conductivity cell. Conductometric titrations of lanthanides with ethylenediaminetetraacetic acid (EDTA) and trans-1,2-diaminocyclohexanetetraacetic acid (DCTA) as complexing agents were successfully carried out in the presence of alkaline earth metal ions, transition metal ions, and other metal ions, such as Al3+ and Th4+, as interfering ions. The performance of the titrations of binary mixtures of Al(III) and lanthanides further improved and distinct end points corresponding to the stoichiometric ratio could be observed in mixed solvent media containing 1,4-dioxane (10―20%) which otherwise showed interference in aqueous media. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301141g