Validation and Application of a New Reversed Phase HPLC Method for In Vitro Dissolution Studies of Rabeprazole Sodium in Delayed-Release Tablets

Table 5

Stability of analytical sample solution.

Hour	Concentration (μg/mL)	Room temperature (°C)	Peak area of sample	Difference percentage (%) from initial
0	10	25 ± 2	207960	0.0
1	10	25 ± 2	205734	1.1
2	10	25 ± 2	204729	1.6
3	10	25 ± 2	204185	1.8
4	10	25 ± 2	202898	2.4
5	10	25 ± 2	200037	3.8
6	10	25 ± 2	197381	5.1