Table 9.
Clonidine hydrochloride concentrations found in samples
|
Method with bromophenol blue solution
|
||||
|---|---|---|---|---|
|
Sample 1
|
Sample 2
|
|||
|
mg found
/tablet ± SD |
%
Recovery |
mg found
/tablet ± SD |
%
Recovery |
|
| Day 1 | 0.1490 ± 0.003 | 99.33 | 0.1471 ± 0.031 | 98.06 |
| Day 2 | 0.1499 ± 0.012 | 99.93 | 0.1475 ± 0.007 | 98.33 |
| Day 3 | 0.1502 ± 0.029 | 100.13 | 0.1486 ± 0.005 | 99.06 |
|
Method with thymol blue solution
|
||||
|
Sample 1
|
Sample 2
|
|||
|
mg found
/tablet ± SD |
%
Recovery |
mg found
/tablet ± SD |
%
Recovery |
|
| Day 1 | 0.1495 ± 0.026 | 99.66 | 0.1472 ± 0.008 | 98.13 |
| Day 2 | 0.1503 ± 0.015 | 100.2 | 0.1477 ± 0.006 | 98.46 |
| Day 3 | 0.1492 ± 0.079 | 99.46 | 0.1478 ± 0.017 | 98.53 |