Table 1 Instrumental optimised conditions for urine analysis of As, Se and Pt by means HGAAS and ICP–OES
As HG–AAS | |
|---|---|
Bandpass width | 2 nm |
Bandpass height | Normal |
Lamp current | 8.0 mA |
Backup current | 30 mA |
Temperature EHG 3000 | 920°C |
N2 flow | 45–50 mL/min |
Time signal stabilisation | 60 s |
Reading time | 10 s |
Pt–Se ICP–OES | |
Spectral line of Pt | 265.945 nm |
Spectral line of Se | 196.026 nm |
Nebulising flow | 0.40 L/min |
Line detection height | 6.8 mm |
Pump | 17.0 rpm |
Power | 1200 W |
Auxiliary gas | 0.6 L/min |
Ar feed | 12.0 L/min |
Nebulising chamber | Spray trace; Micromist nebuliser at 200 μL/min |