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Complexometric determination of mercury(II) in waters by spectrophotometry of its dithizone complex

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Abstract

This paper presents a new method for the determination of Hg(II) in waters, using “indirect” spectrophotometric measurements of the Hg(II) dithizone complex. The reagent is a mixture of dithizone, CDTA (1,2-cyclohexylene-dinitrilo-tetraacetic acid), thiourea, ethylic alcohol and glycine. Sensitivity and working range are 0.4 μg · l−1 and 2–100 μg · l−1, respectively. A comparison of the results with those of the cold-vapor atomic absorption spectrometry shows a good correlation for different samples revealing only small interferences. The new method is well suited for on-line measurements, easy to run and has low cost equipment.

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Authors and Affiliations

  1. Laboratoire de Chimie et Environnement, Université de Provence, Case 29, 3, Place Victor Hugo, F-13331, Marseille Cedex, France

    Frédéric Théraulaz & Olivier P. Thomas

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  1. Frédéric Théraulaz
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  2. Olivier P. Thomas
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Théraulaz, F., Thomas, O.P. Complexometric determination of mercury(II) in waters by spectrophotometry of its dithizone complex. Mikrochim Acta 113, 53–59 (1994). https://doi.org/10.1007/BF01243137

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  • DOI: https://doi.org/10.1007/BF01243137

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