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Electrochemistry of bis(1,10-phenanthroline)copper(Ⅱ)-socdium dodecyl sulfate solution in the presence of MgCl2
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2007, v.20 no.6, pp.483-487
(2007). Electrochemistry of bis(1,10-phenanthroline)copper(Ⅱ)-socdium dodecyl sulfate solution in the presence of MgCl2. Analytical Science and Technology, 20(6), 483-487.
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Abstract
Electrochemistry of 1.0 mM bis(1,10-phenanthroline)copper(II) <TEX>$(Cu(ph){_2}^{2+})$</TEX> in 100 mM NaCl solution including 27 mM <TEX>$MgCl_2$</TEX> with and without sodium dodecyl sulfate (SDS) is studied. In the presence of SDS, <TEX>$E_{pa}$</TEX> and <TEX>$E_{1/2}$</TEX> of <TEX>$Cu(ph){_2}^{2+}$</TEX> by adding <TEX>$Mg^{2+}$</TEX> shifts to a positive direction compared to the SDS free. The intersection of two lines on <TEX>${\Delta}E_p$</TEX> vs -log[SDS] plot is determined as a critical micelle concentration (CMC). When <TEX>$Mg^{2+}$</TEX> is added, it seems that the double layer became more compact. And the formation of micelles is retarded.
- keywords
- bis(1, 10-phenanthroline)copper(II), sodium dodecyl sulfate, critical micelle concentration, ionic strength, double layer
Reference
1
Yamada, (1995) J. of Biochem,
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