Table 3 The FAAS instrument operation condition for determination of selected elements in potato samples
Metals | Wavelength (nm) | Limit of detection (mg/kg) | Slit width (nm) | Lamp current (mA) | Correlation coefficient of calibration curve |
|---|---|---|---|---|---|
Ca | 422.7 | 8.6 | 1.2 | 12 | 0.99997 |
Mg | 285.2 | 0.5 | 1.2 | 6 | 0.99890 |
Fe | 248.3 | 5.0 | 0.2 | 15 | 0.99989 |
Zn | 213.9 | 1.8 | 0.5 | 6 | 0.99988 |
Pb | 283.3 | 0.3 | 1.2 | 6 | 0.99806 |
Cd | 228.8 | 0.1 | 1.2 | 6 | 0.99972 |