Table 2.
Recovery rates (trueness values) of CoQ10 from samples of PPC and CH with RSDs (precision values).
| Sample | Spiking Concentration (µg CoQ10/mL) |
Found Concentration (µg CoQ10/mL) |
RSD (%) |
Recovery Rate (%) |
RSD (%) |
|---|---|---|---|---|---|
| PPC | - | 12.05 ± 0.042 | 0.4 | - | - |
| 0.5 | 14.56 ± 0.042 | 0.3 | 116.0 ± 0.054 | 0.05 | |
| 1.5 | 15.63 ± 0.042 | 0.3 | 115.4 ± 0.053 | 0.05 | |
| 5.0 | 17.21 ± 0.084 | 0.5 | 100.9 ± 0.242 | 0.2 | |
| CH | - | 14.29 ± 0.0 | 0.0 | - | - |
| 0.5 | 15.66 ± 0.084 | 0.5 | 105.9 ± 0.569 | 0.5 | |
| 1.5 | 16.88 ± 0.127 | 0.7 | 106.9 ± 0.802 | 0.7 | |
| 5.0 | 19.15 ± 0.127 | 0.7 | 99.3 ± 0.656 | 0.7 |
PPC—pumpkin press cake; CH—chicken hearts; RSD—relative standard deviation. The results are expressed as the mean ± standard deviation of the triplicate data (n = 3).