Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode

<table>Effect of preconcentration time (20–150 s) on peak current at HMS-Qu/CPE in 1.0 <svg height="9.6750002" id="M26" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 9.6374998 9.6750002" width="9.6374998" xmlns="http://www.w3.org/2000/svg">
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</svg>M (each) multicomponent Cu(II)/Pb(II)/Cd(II) solution and 0.1 M HCOONa-HCl buffer (pH4.7). Condition: preconcentration potential 0.6 V, potential scan range 0.6 V to <svg height="10.9125" id="M27" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 30.362499 10.9125" width="30.362499" xmlns="http://www.w3.org/2000/svg">
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Journal of Analytical Methods in Chemistry

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Figure 5

Figure 5: Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode 

Figure 5 | Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode 