- P-ISSN 1225-0163
- E-ISSN 2288-8985
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.
Yamada, (1995) J. of Biochem,