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KMID : 1059519940380070496
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Journal of the Korean Chemical Society
1994 Volume.38 No. 7 p.496 ~ p.501
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Determination of Tellurium(Ⅳ) by Square-Wave Voltammetry
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Sohn Se-Chul
Suh Moo-Yul
Eom Tae-Yoon
Choi In-Kyu
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Abstract
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Square-wave voltammetric behavior for tellurium(Ⅳ) was studied in hydrochloric acid medium using a hanging mercury drop electrode. The reduction of tellurium(Ⅳ) was found to be irreversible and catalized by acid. Analytical conditions for the determination of tellurium(Ⅳ) and effects of diverse ions were also investigated. The detection limit of tellurium(Ⅳ) was 4.2 ppb (3.3×10-8 M). The amount of tellurium(Ⅳ) on the electrode surface was Γ= (7.2±1.4) ×10-11 mol cm-2.
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