| 加入值(μg g−1) | 检测值(μg g−1) | 回收率(%) |
茶叶(龙井) | 0 | 24.2 ± 1.6 |
|
20 | 42.5 ± 2.7 | 91.5 | |
40 | 64.9 ± 5.2 | 101.8 | |
茶叶(铁观音) | 0 | 45.7 ± 3.5 |
|
20 | 64.8 ± 3.3 | 95.5 | |
40 | 83.5 ± 5.2 | 94.5 | |
茶叶(黑茶) | 0 | 16.9 ± 0.6 |
|
20 | 38.6 ± 1.7 | 108.5 | |
40 | 55.7 ± 2.5 | 97.0 |