Voltammetric Determination of Sulfide Ions |
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Authors: | S V Kovaleva N M Cheremukhina V P Gladyshev |
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Institution: | (1) Tomsk State Pedagogical University, Komsomol'skii pr. 75, Tomsk, 634051, Russia |
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Abstract: | Procedures were proposed for the voltammetric determination of S2– at a mercury-film electrode. They are based on the oxidation of S2– at –0.79 to –0.80 V and on the reduction of HgS, the product of the oxidation of S2–, at –0.76 to –0.96 V in a 1 M NaOH solution. The anodic and cathodic currents are linear functions of S2– concentration in the ranges from 1 × 10–5 to 1 × 10–4 M and from 2 × 10–6 to 1 × 10–4 M, respectively. |
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