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Recovery test results and calibration curve equations for the determination of heavy metals in selected cereals.
| Analyte | Recovery (%) | Regression equations (Y = mx + b)∗ | R 2 | Wavelength (nm) |
|---|---|---|---|---|
| Cr | 85.6–107.2 | Y = 13969x + 3289.8 | 0.9973 | 425.433 |
| Cu | 91.6–106.4 | Y = 103051x + 34163 | 0.9966 | 324.754 |
| Pb | 98.4–112.8 | Y = 1899.4x + 200.23 | 0.9976 | 405.754 |
| Cd | 99.2–110.4 | Y = 13829x + 4869.5 | 0.9983 | 228.802 |
∗ Y = intensity; m = slope; x = concentration (mg/L); b = intercept.
