Research Article
Direct Quantitative Analysis of Arsenic in Coal Fly Ash
Table 4
Optimized furnace program for the analysis of raw coal (liquid sampling system).
| Step | Parameters |
Ar gas | Temperature (°C) | Rate (°C s−1) | Hold time (s) | Total time (s) |
| Drying | 90 | 30 | 5 | 7.3 | Max | Drying | 105 | 10 | 20 | 21.5 | Max | Drying | 120 | 10 | 5 | 6.5 | Max | Pyrolysis | 1500 | 100 | 30 | 43.8 | Max | Autozero (AZ) | 1500 | 0 | 6 | 6.0 | Stop | Atomization | 2500 | 1000 | 6 | 7.0 | Stop | Cleaning | 2600 | 1000 | 10 | 10.1 | Max |
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