QC Low [2 µg/ml]
Time [hour] Mean Accuracy% Stability%
0 hour 2.10 110.5   96.7
105
100
8 hours 2.03 105.5
99
99.5
QC High [12.8 µg/ml]
Time [hour] Mean Accuracy% Stability%
0 hour 12.79 99.9   99.5
100.1
99.8
8 hour 12.73 99.3
99.8
99.1
Table 3: Room temperature stability data for pioglitazone HCl in serum.