Direct Zinc Determination in Brazilian Sugar Cane Spirit by Solid-Phase Extraction Using Moringa oleifera Husks in a Flow System with Detection by FAAS
Figure 4
Response surface for optimization of eluent concentration and sample flow rate: sample volume, 10.0 mL; sample concentration, 10 μg L−1; sorbent mass, 30 mg; pH, 4.0.
