Research Article
Simultaneous Determination of Retinols and Tocols in Egg and Milk Products Based on RP-HPLC Linked with Fluorescent and Photodiode Array
Table 6
Certificated reference materials test results.
| | Name | SRM 1869 | SRM 1849a | | Measured value (mg/kg) | Certified value (mg/kg) | Measured value (mg/kg) | Certified value (mg/kg) |
| | Retinol | 9-cis retinol | 0.45 | 19.27 ± 0.32 (for retinol) | 0.60 | 7.68 ± 0.23 (for retinol) | | 11-cis retinol | ND | | ND | | | 13-cis retinol | 1.42 | | 1.39 | | | All-trans retinol | 18.66 | | 6.60 | |
| | Vitamin E | α-Tocopherol | 214.7 | 217.2 ± 6.2 (for total α-tocopherol) | 204.70 | 219 ± 16 (for total α-tocopherol) | | β-Tocopherol | 3.79 | 4.22 ± 0.69 | 6.30 | — | | γ-Tocopherol | 99.83 | 99.4 ± 5.1 | 144.1 | — | | δ-Tocopherol | 33.21 | 32.5 ± 2.9 | 82.3 | — | | α-Tocotrienol | 1.20 | — | 1.83 | — | | β-Tocotrienol | ND | — | ND | — | | γ-Tocotrienol | 0.41 | — | 1.20 | — | | δ-Tocotrienol | 0.05 | — | ND | — |
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ND: not found; —: not referred.
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