Table 2 Residues of 17 PCDD/Fs in MSWIFA at different temperatures. Unit: ng·kg-1.
PCDD/Fs | Reaction temperature (°℃) | |||||
|---|---|---|---|---|---|---|
100 ℃ | 200 ℃ | 300 ℃ | 350 ℃ | 400 ℃ | 450 ℃ | |
2,3,7,8-TCDF | 72.7 | 91.2 | 37.7 | 5.8 | 3.1 | 0.4 |
1,2,3,7,8-PeCDF | 89.1 | 55.5 | 24.3 | 4.1 | 1.0 | 0.5 |
2,3,4,7,8-PeCDF | 166.2 | 87.9 | 78.9 | 4.8 | 1.6 | 0.7 |
1,2,3,4,7,8-HxCDF | 91.9 | 31.6 | 50.7 | 2.3 | 1.6 | 0.4 |
1,2,3,6,7,8-HxCDF | 122.7 | 38.2 | 59.0 | 3.4 | 3.1 | 0.5 |
2,3,4,6,7,8-HxCDF | 164.5 | 44.9 | 71.0 | 3.7 | 1.3 | 0.5 |
1,2,3,7,8,9-HxCDF | 51.4 | 12.0 | 26.3 | 0.5 | 0.5 | 0.2 |
1,2,3,4,6,7,8-HpCDF | 226.8 | 41.7 | 135.0 | 4.9 | 22.1 | 2.2 |
1,2,3,4,7,8,9-HpCDF | 48.6 | 7.0 | 24.5 | 0.8 | 1.8 | 0.6 |
OCDF | 37.3 | 6.1 | 17.0 | 1.1 | 5.9 | 2.2 |
2,3,7,8-TCDD | 14.5 | 11.8 | 5.2 | 3.8 | 1.0 | 0.3 |
1,2,3,7,8-PeCDD | 60.3 | 58.2 | 19.0 | 1.6 | 2.5 | 0.5 |
1,2,3,4,7,8-HxCDD | 60.9 | 15.8 | 16.1 | 1.4 | 0.6 | 0.3 |
1,2,3,6,7,8-HxCDD | 120.5 | 38.3 | 31.6 | 3.1 | 0.8 | 0.3 |
1,2,3,7,8,9-HxCDD | 82.3 | 26.3 | 19.4 | 2.2 | 0.5 | 0.5 |
1,2,3,4,6,7,8-HpCDD | 468.1 | 104.5 | 271.1 | 12.4 | 4.5 | 2.0 |
OCDD | 348.9 | 69.7 | 215.6 | 27.3 | 51.0 | 5.5 |
Total amounts of 17 PCDD/Fs | 2226.7 | 740.7 | 1102.4 | 83.2 | 102.9 | 17.6 |
I-TEQ | 216.7 | 119.1 | 91.1 | 9.7 | 4.6 | 1.3 |
