Table 2 The application of 2,7-BFGPE for determination of methyldopa in methyldopa tablet and urine samples
Sample | Original content | Spiked | Found | Recovery (%) | R.S.D. (%) |
|---|---|---|---|---|---|
Methyldopa tablet | |||||
15.0 | 0 | 15.3 | 102.0 | 3.5 | |
15.0 | 5.0 | 19.8 | 99.0 | 1.9 | |
15.0 | 1.0 | 24.4 | 97.6 | 2.5 | |
15.0 | 15.0 | 30.5 | 101.7 | 2.9 | |
Urine | |||||
- | 7.5 | 7.4 | 98.7 | 1.8 | |
- | 12.5 | 12.9 | 103.2 | 3.1 | |
- | 17.5 | 17.4 | 99.4 | 2.3 | |
- | 22.5 | 23.1 | 102.7 | 2.6 |