Simultaneous determination of tin and lead by anodic stripping voltammetry with addition of surfactant |
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| Authors: | J Georges M Mermet |
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| Institution: | Laboratoire de Chimie Analytique III (CNRS, UA 04-435), Université Claude Bernard, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex France |
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| Abstract: | The influence of various surfactants on the simultaneous determination of tin(IV)and lead(II) by differential-pulse stripping voltammetry at a hanging mercury drop electrode in an acidic medium is reported. With addition of Pluronic-F68 or Brij-78, the tin wave disappears, while the lead wave is not affected. With a deposition time of 1 min at ?0.8 V vs. Ag/AgCl, 10?7 M concentrations of each ion can be determined if the Sn/Pb ratio is ? 3. |
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