A Green Preconcentration Method for Determination of Cobalt and Lead in Fresh Surface and Waste Water Samples Prior to Flame Atomic Absorption Spectrometry
Figure 1
Effect of pH on the percentage of recovery: 20 μg L−1 of Pb and Co, mol L−1 oxine, 0.5% (v/v) Triton X-114, temperature 50°C, and centrifugation time 10 min (3500 rpm).
