Sample concentration
(ng mL-1) |
Mean concentration (ng mL-1) ± SD (%) (n=6) |
Precision (%CV) |
Accuracy (%) |
| Extract stability (4℃ for 25 h) |
|
|
|
| 10 |
11.29 ± 0.98 |
8.69 |
112.93 |
| 20 |
21.09 ± 2.03 |
9.62 |
105.43 |
| 200 |
195.42 ± 3.16 |
1.62 |
97.71 |
| 1600 |
1650.33 ± 104.41 |
6.33 |
103.15 |
| 4000 |
3878.67 ± 68.54 |
1.77 |
96.97 |
| Freeze/thaw stabilitya |
|
|
|
| 20 |
21.25 ± 2.10 |
9.86 |
106.23 |
| 1600 |
1547 ± 12 |
0.79 |
96.7 |
Short-term stability
(room temperature for 24 h) |
|
|
|
| 20 |
18.34 ± 0.44 |
2.42 |
91.71 |
| 1600 |
1685 ± 13.52 |
0.8 |
105.33 |
aFreeze thaw stability after third cycle |
