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| Apparatus precision | |||||
| Repeats | 1 | 2 | 3 | 4 | 5 |
| Extraction efficiency | 96.29% | 96.75% | 96.60% | 96.30% | 95.99% |
| RSD (%) | 0.3084 | ||||
| Repeatability experiment | |||||
| Sample number | 1 | 2 | 3 | 4 | 5 |
| Extraction efficiency | 97.06% | 97.36% | 95.69% | 97.82% | 96.00% |
| RSD (%) | 0.9415 | ||||
| Stability experiment | |||||
| Day number | 1 | 2 | 3 | 4 | 5 |
| Extraction efficiency | 94.62% | 96.75% | 91.87% | 97.06% | 98.43% |
| RSD (%) | 2.6739 | ||||
