Table 1. Linearity, limit of detection, and limit of quantification of retinol, β-carotene, α-tocopherol, and cholesterol analyses
Analytes | Regression equation(y=ax+b)1) | Correlationcoefficient (R2) | LOD2)(μg/100 g) | LOQ3)(μg/100 g) |
Retinol | y=204.15x-0.9242 | 0.9998 | 0.018 | 0.049 |
β-Carotene | y=161.08x-8.6993 | 0.9997 | 0.064 | 0.087 |
α-Tocopherol | y=(1×106)x+22011 | 0.9999 | 0.089 | 0.236 |
β-Tocopherol | y=(1×106)x+4980.7 | 1.0000 | 0.098 | 0.258 |
γ-Tocopherol | y=(2×106)x+38906 | 0.9999 | 0.075 | 0.200 |
δ-Tocopherol | y=(2×106)x-20255 | 1.0000 | 0.072 | 0.161 |
Cholesterol | y=10.286x+0.0006 | 0.9998 | 47.082 | 122.018 |
1)y and x indicate peak area (mAU) and concentration, respectively.
2)Limit of detection.
3)Limit of quantification.