Table 1 Operating parameters for the GF-AAS analysis of heavy metals
Elements | Wavelength (nm) | Detection limit (µg/g) | Slit width (nm) | Lamp current (mA) | Gas flow (L/min) |
|---|---|---|---|---|---|
Cd | 228.8 | 0.00005 | 0.7 | 8 | 1 |
Cr | 357.9 | 0.00002 | 0.7 | 10 | 1 |
Pb | 283.3 | 0.00005 | 0.7 | 10 | 1 |
As | 193.7 | 0.00010 | 0.7 | 12 | 1 |
Se | 196.0 | 0.00005 | 0.7 | 23 | 1 |