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. Author manuscript; available in PMC: 2012 Jun 15.
Published in final edited form as: J Electroanal Chem (Lausanne). 2011 Jun 15;656(1-2):78–84. doi: 10.1016/j.jelechem.2011.01.006

Fig. 3.

Fig. 3

Effect of (A) KCl concentration, (B)the mass ratio of Hg to Bi, (C) Hg/Bi concentration, (D) quiet time before codeposition of Hg and Bi, (E) quiet time before codeposition of Hg and Bi, and (F) the deposition potential of Hg and Bi on the stripping signal of 100 μg L-1 Zn (II), Cd(II) and Pb(II) in 0.1 M NaAc/HAc (pH 6.0). The experimental parameters for (A) are Hg:Bi ratio: 2:1, Hg/Bi concentration: 50 mg L-1, SWNTs amount: 2.0 μL, quiet time before Hg/Bi deposition: 120 s, deposition potential: -1.1 V, Hg/Bi deposition time: 60 s, preconcentration time: 240 s. The followings used the optimized parameters obtained. Error bar: n = 3.