Table 2.
Validation parameters for the headspace solid-phase microextraction-gas chromatography mass spectrometry (HS-SPME-GM-MS) optimized method.
| Validation Parameter | Hexanal | Trans-2-Heptenal | Octanal | Trans-2-Decenal |
|---|---|---|---|---|
| Linear range (mg Kg−1) |
0.001–1.096 | 0.001–1.760 | 0.002–0.880 | 0.004–0.073 |
| R2 value | 0.998 | 0.997 | 0.998 | 0.990 |
| Limits of detection (LOD) (µg Kg−1) |
0.89 ± 0.06 | 1.03 ± 0.53 | 1.55 ± 0.07 | 18.48 ± 0.65 |
| Limits of quantitation (LOQ) (µg Kg−1) |
2.97 ± 0.20 | 5.76 ± 0.78 | 5.15 ± 0.24 | 61.59 ± 2.18 |
| Intra-day repeatability * | 1.9 | 4.2 | 1.4 | 3.5 |
| Inter-day repeatability * | 6.7 | 4.9 | 6.5 | 7.9 |
* Intra-day and inter-day repeatability (peak area relative standard deviation (RSD) %).