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Results for the determination of PFLX in capsules (n = 5).
| Sample | Labeled (mg) | Amount found ± R.S.D.% | Added (×10−7 M) | Found (×10−7 M) | Recovery ± R.S.D (%) | |
|---|---|---|---|---|---|---|
| This method | UV-method | |||||
| PFLX (capsule 1) | 200.0 | 200.4 ± 3.6 | 197.2 ± 1.2 | 1.00 | 1.04 | 104.0 ± 3.60 |
| 2.00 | 2.04 | 102.0 ± 2.90 | ||||
| 4.00 | 4.06 | 101.5 ± 2.92 | ||||
|
| ||||||
| PFLX (capsule 2) | 200.0 | 200.2 ± 1.5 | 196.9 ± 3.9 | 6.00 | 6.10 | 101.7 ± 2.46 |
| 8.00 | 8.20 | 102.5 ± 3.63 | ||||
| 10.00 | 9.88 | 98.8 ± 3.92 | ||||
