Brand P1

Brand P2

Brand P3

Brand P4

Brand P5

Mean

562.45 mg

574.76 mg

600.11 mg

589.3 mg

675.34 mg

Variance

14.27

26.02

17.02

88.92

22.11

SD

3.77

5.1

4.12

9.42

4.7

RSD (%)

0.67%

0.89%

0.68%

1.6%

0.69%