Table 2. Accuracy of retinol, β-carotene, α-tocopherol, and cholesterol analyses

Analytes SRM1) Reference value2) Analytical value3) Recovery (%)
Retinol (μg/100 g) SRM 1849a 768±23 776.29±3.34 101.1
β-Carotene (μg/100 g) SRM 3251 3640±560 3806.54±173.48 95.6
α-Tocopherol (mg/100 g) SRM 1849a 21.9±1.3 21.56±0.08 98.6
Cholesterol (mg/100 g) SRM 1849a 13.74±0.29 13.81±0.15 100.5
1)SRM: standard reference materials, SRM 1849a: infant/adult nutritional formula, SRM 3251: saw palmetto.
2)The true value for the contents of corresponding analytes in SRM provided by NIST.
3)The analytical value obtained in this study.