Table 3.
Stability data of seven compounds and IS in rat plasma under various storage conditions (n = 3).
| Compounds | Spiked concentration (ng/mL) | Ambient temperature stability |
Long-term stability |
Three freeze/thaw cycles |
Post-preparative stability |
||||
|---|---|---|---|---|---|---|---|---|---|
| Accuracy (RE%) | Precision (RSD%) | Accuracy (RE%) | Precision (RSD%) | Accuracy (RE%) | Precision (RSD%) | Accuracy (RE%) | Precision (RSD%) | ||
| Rg1 | 2.39 | −5.07 | 6.9 | 3.52 | 9.6 | −0.13 | 6.50 | 5.72 | 10.5 |
| 95.6 | 2.86 | 2.07 | −2.33 | 5.5 | 2.26 | 1.38 | 5.9 | 4.4 | |
| Re | 1.20 | −0.83 | 14.6 | 7.21 | 15.0. | −6.71 | 3.0 | 6.2 | 12.1 |
| 47.9 | −0.53 | 5.40 | 5.83 | 8.00 | 1.33 | 5. 5 | 5.44 | 3.6 | |
| NGR1 | 2.39 | −4.35 | 3.4 | 2.05 | 5.93 | −7.43 | 11.1 | 4.64 | 5.1 |
| 95.6 | −0.77 | 3.13 | −9.83 | 9.24 | 6.54 | 6.43 | 2.3 | 3.4 | |
| Rd | 9.56 | 5.26 | 8.6 | 6.45 | 10.7 | −3.96 | 10.9 | −4.23 | 13.8 |
| 191.3 | 2.75 | 7.7 | 1.30 | 0.74 | 7.37 | 5.25 | 2.51 | 4.03 | |
| Rb1 | 7.65 | −1.63 | 6.94 | −4.70 | 11.23 | 0.54 | 5.81 | 1.85 | 3.45 |
| 1530.2 | −4.93 | 8.28 | 4.35 | 10.94 | −3.46 | 7.14 | −1.42 | 5.52 | |
| Rg5 | 19.1 | 2.92 | 6.42 | 7.46 | 8.12 | 4.62 | 9.53 | 10.6 | 3.36 |
| 191.3 | 3.48 | 6.24 | 6.28 | 5.99 | 5.23 | 10.2 | 0.25 | 1.29 | |
| Rk1 | 19.1 | 5.03 | 5.18 | 3.25 | 8.36 | 7.25 | 8.66 | 3.09 | 8.43 |
| 191.3 | 1.35 | 3.95 | 7.38 | 1.52 | 0.95 | 8.33 | 5.15 | 2.86 | |
| IS | 2.39 | 6.78 | 1.18 | −9.62 | 2.17 | 1.99 | 2.02 | −8.93 | 6.58 |