Research Article
Study and Determination of As, Cr, and Pb in Amaranth Seeds
Table 1
The operating parameters of the system ICP-OES.
| Parameter instrument operating conditions | As | Cr | Pb |
| λ (nm) As: 188.980 | λ (nm) Cr: 205.560 | λ (nm) Pb: 220.353 |
| Power: 1.2 kW | Plasma gas flow: 15 L/min | Auxiliary gas flow: 1.5 L/min | Nebulizer pressure: 250 kPa | Pump rate: 15 rpm | Sample uptake rate: 1.2 mL/min | Replicate read time: 30 s | Background correction Fitted | Replicate read time: 10 s | Replicate readings: 3 |
|
|