| Sample | Yu | Au | QY (%) |
| L-6-240 | 11,110.7 | 0.048 | 2.75 |
| L-8-240 | 13,667.5 | 0.028 | 5.81 |
| L-10-240 | 13,667.5 | 0.056 | 2.90 |
| L-12-240 | 13,667.5 | 0.055 | 2.96 |
| L-12-220 | 20,280.1 | 0.046 | 5.24 |
| L-12-200 | 20,749.7 | 0.054 | 4.57 |
| L-12-180 | 18,312.4 | 0.058 | 3.76 |