| 样品 | M2 (g) | M3 (g) | R (%) | |
| 长庆原油污染土壤 | 试样1 | 16.5894 | 15.1428 | 8.73 |
| 试样2 | 16.5954 | 15.1450 | ||
| 大庆原油污染土壤 | 试样1 | 23.3828 | 21.2667 | 9.06 |
| 试样2 | 23.3860 | 21.2649 | ||
| 俄罗斯原油污染土壤 | 试样1 | 13.8554 | 12.8246 | 7.45 |
| 试样2 | 13.8518 | 12.8185 | ||