Table 6: Analysis of pharmaceutical formulations of PZT by the proposed and reported methods.

Drug formulationsRecoverya  % ± SD
ABCDEReported method [16]

Selgon tablets (20 mg/tablet)
-valueb0.460.140.310.810.61
-valueb2.091.241.131.861.66
Selgon drops (40 mg/mL)
-valueb1.430.771.151.331.23
-valueb1.281.811.141.722.27

Average ± SD of six determinations.
bTheoretical value for - and F-values for five degrees of freedom and 95% confidence limits ( ) are 2.57 and 5.05, respectively.