Table 5 Determination of the studied drugs in Dimetrol^® suspension by the updated PLS model and statistical comparison with the reported RP-HPLC method

Dimetrol ^® suspension ^a

(B.No.906001)

101.19 ± 1.327

99.59 ± 0.981

Standard addition ^b

99.95 ± 1.233

100.55 ± 1.159

Degree of freedom F-test

(5.050) ^c

10

10

0.738

1.026

Degree of freedom

10

10

Student's -t test

(2.228) ^c

0.200

0.444