Table 1.
Operating conditions for Perkin Elmer Optima 3300 DV ICP-AES instrument
RF power (kW) | 1.5 |
Nebulizer | Cross-flow |
Spray chamber | Glass concentric |
Plasma Ar (L min−1) | 16 |
Auxiliary Ar (L min−1) | 0.4 |
Nebulizer Ar (L min−1) | 0.6 |
Sample uptake (mL min−1) | 1.5 |
Delay time (s) | 45 |
Scanning mode | Continuous, axial |
Integration time (s) | Automatic (min. 0.5 – max. 5 s) |
Readings/replicate | 3 |
Wavelength (nm) | Cr: 267.716; Cu: 324.754; Fe: 259.940; Mn: 257.610; Ni: 231.604; Zn: 213.856 |