Microwave-Assisted Digestion of Polyurethane Foam as an Alternative to Elution: Solid Phase Extraction of Cd(II) and Pb(II) for Their Determination in Swimming Pool Waters

<div>Influence of the pH on the extraction efficiency of (■) Cd and (○) Pb by polyurethane foam. Concentration of Cd = 0.5 mg·L<sup>−1</sup>, concentration of Pb = 2.0 mg·L<sup>−1</sup>, APDC concentration = 0.1% (m/v), shaking time = 30 min, and mass of PUF = 250 mg.</div>

Journal of Analytical Methods in Chemistry

fig4

Figure 4

Figure 4: Microwave-Assisted Digestion of Polyurethane Foam as an Alternative to Elution: Solid Phase Extraction of Cd(II) and Pb(II) for Their Determination in Swimming Pool Waters 

Figure 4 | Microwave-Assisted Digestion of Polyurethane Foam as an Alternative to Elution: Solid Phase Extraction of Cd(II) and Pb(II) for Their Determination in Swimming Pool Waters 