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Spectrophotometric determination of chromium with diphenylcarbazide in the presence of vanadium, molybdenum, and iron after separation by solid-phase extraction

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Abstract.

A method has been developed for the determination of chromium in presence of V(V), Mo(VI), and Fe(III). The effects of interferences were evaluated by using the apparent content curves method, and their separation was performed by solid-phase extraction with an anionic exchanger. The sample-treatment conditions and the influence of the sample conductivity were studied. Tolerance limits were established, and the proposed procedure was used to determine chromium in certified samples and for speciation of chromium in waste water. Our results were always in agreement with the theoretical content.

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Authors and Affiliations

  1. Departament de Química Analítica, Universitat de València Estudi General, Dr Moliner 50, 46100 Burjassot (València), Spain, Spain

    M. Llobat-Estellés, A. Maurí-Aucejo & M. López-Catalán

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  1. M. Llobat-Estellés
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  2. A. Maurí-Aucejo
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  3. M. López-Catalán
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Llobat-Estellés, M., Maurí-Aucejo, A. & López-Catalán, M. Spectrophotometric determination of chromium with diphenylcarbazide in the presence of vanadium, molybdenum, and iron after separation by solid-phase extraction. Fresenius J Anal Chem 371, 358–363 (2001). https://doi.org/10.1007/s002160100970

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  • DOI: https://doi.org/10.1007/s002160100970

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