Direct lead determination in wine by hydride generation-atomic absorption spectrometry |
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Authors: | Jesus Sanz Puy Basterra Javier Galban Juan R. Castillo |
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Affiliation: | (1) Analytical Chemistry Department, University College of La Rioja, University of Zaragoza, Logroño, Spain;(2) Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, Zaragoza, Spain |
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Abstract: | In this work, a method for direct lead determination in wine, without wet or dry sample attack, by lead hydride generation-atomic absorption spectrometry, is proposed. To do this, ammonium persulphate is employed as the oxidizing agent, and sodium borohydride is used as the reducing agent. The pH value must be 1.0.Lead content in wine is determined by the analyte addition technique, and the result is compared with those obtained by three different methods. |
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Keywords: | lead hydride generation AAS wine sample |
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