| 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% |