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- E-ISSN 2288-8985
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Voltammetric Behavior and Determination of Rubeanic acid at Mercury
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1997, v.10 no.3, pp.216-224
Kwon,
Y., &
Koo,
H.
(1997). Voltammetric Behavior and Determination of Rubeanic acid at Mercury. Analytical Science and Technology, 10(3), 216-224.
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Abstract
In the study of cyclic voltammogram of rubeanic acid, rubeanic acid has two reduction peaks; first peak is similar with that of <TEX>$S^{2-}$</TEX> and thiourea, which is conceded to by HgS, second peak is very weak and unidentified. The study also describes the differential pulse cathodic stripping voltammetric method for the determination of rubeanic acid. The followings were optimal conditions of rubeanic acid for the study : 0.05M borate buffer solution(pH 10.0) ; an accumulation potential of -0.30V(vs. Ag/AgCl); accumulation time of 120sec. : scan rate of 10mV/sec. The detection limit of trace analysis shows <TEX>$2.7{\times}10^{-8}M$</TEX> of rubeanic and at optimal conditions.
- keywords
- Rubeanic acid, voltammetric behavior acid determination
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