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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Voltammetric Determination of Ag(I) ion using Carbon Paste Electrode Modified with <TEX>$Ph_2O_2S_3$</TEX>

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.2, pp.171-175
Lee, Ihn Chong
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Abstract

Carbon paste electrodes, modified with podands containing more than two sulfur atoms, have been employed for the voltammetric determination of Ag(I) ion from aqueous solution. The voltammetric response was characterized with respect to paste composition, preconcentration method, kind of anion, variation of pH, Ag(I) ion concentration, and possible interferences. Linear calibration curves were obtained for Ag(I) ion concentration ranging from <TEX>$1.0{\times}10^{-6}$</TEX> to <TEX>$9.0{\times}10^{-5}M$</TEX>, and detection limit was <TEX>$5.0{\times}10^{-7}M$</TEX>.

keywords
silver ion determination, voltammetry, carbon paste electrode, podand


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