Analyte
(urine samples)
Concentration (ng/mL)
Absolute recovery (%)
Method recovery (%)
Nitrendipine
Nisoldipine
50
200
500
50
200
500
100.3±3.2
101.5±5.4
98.4±7.5
92.6±6.8
95.1±3.8
101.3±8.7
97.6±4.8
99.9±5.6
89.5±6.9
99.8±5.6
92.4±6.9
98.7±4.4
Table 3:
Recovery of nitrendipine and nisoldipine in human urine samples.