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Comparison of the calibration linear best fit parameters for cadmium and lead analysis as a function of the polymer used for casting. Experimental conditions: [Cd2+] additions = 25 μg/L; [Pb2+] additions = 25 μg/L; 60-s stripping; differential pulse voltammetry.
| Bi-Polymer Film | Cadmium | Lead | ||||
|---|---|---|---|---|---|---|
| Slope | Intercept | LOD | Slope | Intercept | LOD | |
| Bi/Naf | 1.098 | −1.698 | 1.2 | 0.984 | −0.618 | 0.8 |
| Bi-Meth | N/A | N/A | N/A | 0.346 | −1.80 | N/A |
| Bi-PSS | 2.911 | −8.172 | 1.1 | 4.262 | −0.972 | 0.9 |
