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Simultaneous determination of uranium(VI) and thorium(IV) ions with carminic acid by the partial least squares (PLS-1 and PLS-2) methods

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Abstract

Two multivariate calibration methods, partial least squares types 1 and 2 (PLS-1 and PLS-2) have been applied to the simultaneous determination of U(VI) and Th(IV) ions as complexes with carminic acid by visible absorption spectrophotometry. The results obtained by application of different chemometric approaches are discussed. No significant advantages were found between the methods. The proposed methods were applied satisfactorily to the determination of these ions in synthetic solutions simulating sulfuric acid leach solutions obtained from uranium-thorium ores.

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Authors and Affiliations

  1. Scientific Investigations Institute, Guanajuato University, 36000, Guanajuato, Gto., Mexico

    P. L. López-de-Alba, L. López-Martínez & J. Amador-Hernández

Authors
  1. P. L. López-de-Alba
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  2. L. López-Martínez
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  3. J. Amador-Hernández
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López-de-Alba, P.L., López-Martínez, L. & Amador-Hernández, J. Simultaneous determination of uranium(VI) and thorium(IV) ions with carminic acid by the partial least squares (PLS-1 and PLS-2) methods. Journal of Radioanalytical and Nuclear Chemistry Letters 200, 397–415 (1995). https://doi.org/10.1007/BF02162881

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  • DOI: https://doi.org/10.1007/BF02162881

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