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《Acta Scicentiarum Naturalum Universitis Pekinesis》 1984-04
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The Determination of Trace Amounts of Selenium By Single-Sweep Polarography Ⅰ. On the mechanism of the polarographic catalytic wave of SeSO_~3=-KIO_3

Jiao Kui He Chengjie Zhang Xiyu Department of Chemistry  
A mechanism of SeSO=3-KIO3 catalytic wave is proposed. SeSO3= behaves as a two -electron polarographic reversible reduction. Both SeSO, and the reduction product Se= can be adsorbed on the mercury drop. The catalytic wave of SeSO3=-KIO3 is a parallel(EC) catalytic wave with some absorptive property, the electrode processes may be represented as follows.kf = 1.75×109M-1S-1, so the catalytic wave is very sensitive.
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【Co-citations】
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