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Determination of FA in FA tablet and urine samples. All the concentrations are in µM (n = 5) [64].
| Sample | Spiked | Found | Recovery (%) | Rsd (%) |
|---|---|---|---|---|
| Folic acid tablet | 0 | 15.0 | - | 3.2 |
| 2.5 | 17.8 | 101.7 | 1.7 | |
| 5.0 | 19.5 | 97.5 | 2.8 | |
| 7.5 | 23.3 | 103.5 | 2.2 | |
| 10.0 | 24.8 | 99.2 | 2.4 | |
| Urine | 0 | - | - | - |
| 10.0 | 10.3 | 103.0 | 3.4 | |
| 20.0 | 19.9 | 99.5 | 1.7 | |
| 30.0 | 29.1 | 97.0 | 2.3 | |
| 40.0 | 40.5 | 101.2 | 2.8 |
