Table 3: Results of assay of formulations.

Brand name aIsokin bSolonex

Labeled amount (mg)300300

(1) Using ECH
 (i) Amount found* (mg)299.5299.0
 (ii) % Label claim ± SD99.83 ± 0.01099.66 ± 0.018
 (iii) 𝑡 -test2.23 2.48

(2) Using HPC
 (i) Amount found* (mg)299.70299.81
 (ii) % Label claim ± SD99.90 ± 0.0899.93 ± 0.06
 (iii) 𝑡 -test1.671.62

*Mean value of five determinations.
aPfizer Ltd., India.
bMacleods Pharmaceuticals Ltd.
Calculated Student’s 𝑡 -value at 95% confidence level is 2.77.