| 进样时间/h | 龙脑峰面积 | 水杨酸甲酯峰面积 | RSD |
| 0 | 9.9566 | 3.3440 | 2.09% |
| 2 | 9.9518 | 3.2952 | |
| 4 | 9.9099 | 3.2537 | |
| 6 | 9.7477 | 3.2322 | |
| 8 | 9.6255 | 3.0836 | |
| 10 | 9.3863 | 3.0187 |