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Fluorometric Determination of Cadmium in Polyvinyl Chloride Stabilizers and Polyvinyl Chloride in Nonaqueous Media

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Abstract

A method for the fluorometric determination of cadmium(II) is proposed. The metal reacts with Calcein in N,N-dimethylformamide and the cadmium(U)-Calcein complex formed presents an emission maximum at 534 nm and several excitation maximum, the determination being carried out at an excitation wavelength of either 519 or 496 nm. Over the range 1–70 ng ml-1, the fluorescence intensity is linear with the cadmium(II) concentration; the obtained precision (relative standard deviation) is about 4%. The proposed method permits the determination of cadmium(II) at the trace level. The method was applied to the determination of cadmium in cadmium organic salts, polyvinyl chloride (PVC) thermal stabilizers and PVC polymers.

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Authors and Affiliations

  1. Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, Zaragoza-, 50009, Spain

    Javier Galban, Susana de Marcos, Juan C. Vidal, Carmelo Diaz & Jose Aznarez

Authors
  1. Javier Galban
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  2. Susana de Marcos
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  3. Juan C. Vidal
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  4. Carmelo Diaz
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  5. Jose Aznarez
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Galban, J., de Marcos, S., Vidal, J.C. et al. Fluorometric Determination of Cadmium in Polyvinyl Chloride Stabilizers and Polyvinyl Chloride in Nonaqueous Media. ANAL. SCI. 6, 187–190 (1990). https://doi.org/10.2116/analsci.6.187

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  • DOI: https://doi.org/10.2116/analsci.6.187

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