TABLE 3.
Stability of OXY in human plasma under different storage conditions
| Storage condition | OXY (%RSD) | ||
|---|---|---|---|
| HQC | MQC | LQC | |
| 80 ng/ml | 20 ng/ml | 4 ng/ml | |
|
Post‐preparative stability 8 h in autosampler at 8°C |
0.3 | −0.2 | 0.3 |
|
Bench‐top stability 18 h at room temperature |
−7.8 | −4.6 | −8.1 |
| Freeze–thaw stability a | −1.3 | 1.0 | −1.0 |
|
Short‐term stability 2 weeks at −30°C |
−0.6 | 2.0 | 2.8 |
|
Long‐term stability 6 months at −30°C |
−14.9 | −11.2 | −0.2 |
Note: Each data represents as %RSD (N = 3).
a
OXY was measured after three freeze (−30°C) ‐thaw (room temperature) cycles.