Table 2. Graphite furnace programme.
| Step | T (°C) | Ramp (s) | Hold (s) | Flow (mL/min) |
| 1 | 90 | 5 | 10 | 250 |
| 2 | 110 | 3 | 20 | 250 |
| 3 | 300 | 20 | 10 | 250 |
| 4 | 1100 | 30 | 20 | 250 |
| 5 | 1200 | 1 | 2 | 0 |
| 6 | 2100 | 0 | 4 | 0 |
| 7 | 2300 | 1 | 4 | 250 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.