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. 2016 Jan 4;6(1):7. doi: 10.3390/nano6010007

Figure 4.

Figure 4

(A) Frequency effect on peak height in a solution containing 300 μg·L−1 Bi3+, 10 μg·L−1 Pb2+ and Cd2+ and 300 mM NaCl. SWASV parameters: Ebegin = −1 V, Eend = −0.4 V, Estep = 0.010 V, Epulse = 0.02 V, Econdition = −0.4 V, Edeposition = −1 V, frequency = 1–100 Hz, deposition time = 600 s and equilibrium time = 20 s. (B) Optimization of pulse potential (Epulse) using a solution containing 300 μg·L−1 Bi3+, 10 μg·L−1 Pb2+ and Cd2+ and 300 mM NaCl. SWV parameters: Ebegin = −1 V, Eend = −0.4 V, Estep = 0.010 V, Epulse = 0.005–0.05 V, Econdition = −0.4 V, Edeposition = −1 V, frequency = 100 Hz, deposition time = 600 s and equilibrium time = 20 s.