Mixture no. | Regression equation Y = bx + a | Amlodipine (µg/mL) | % Content | Atorvastatin (µg/mL) | % Content | ||
---|---|---|---|---|---|---|---|
Theoretical | Actual | Theoretical | Actual | ||||
1 | 0.5987b + 0.5881 (r = 0.9999) | 13.01 | 12.94 | 99.46 | 6.49 | 6.36 | 98.00 |
2 | 0.7960b + 0.8059 (r = 0.9998) | 17.33 | 17.21 | 99.31 | 8.65 | 8.72 | 100.81 |
3 | 0.9807b + 0.9904 (r = 0.9998) | 21.60 | 20.77 | 98.15 | 10.82 | 10.72 | 99.08 |
4 | 0.5915b + 0.7944 (r = 0.9999) | 13.00 | 12.78 | 98.31 | 8.65 | 8.60 | 99.42 |
5 | 0.7920b + 0.5932 (r = 0.9997) | 17.30 | 17.12 | 98.96 | 6.49 | 6.42 | 98.92 |
6 | 0.5944b + 0.3943 (r = 0.9998) | 13.00 | 12.84 | 98.77 | 4.33 | 4.27 | 98.61 |
Analytical standard | 21.62 (µg/mL) | 10.82 (µg/mL) | |||||
Mean | 98.83 | 99.14 | |||||
RSD (%) | 0.53 | 0.96 |