Table 9 Robustness study of the proposed method
Standards | Standards (mg/L) | Amount detected (mg/L) (mean ± %RSD) a | |||||
|---|---|---|---|---|---|---|---|
Change in flow rate | Change in pH | ||||||
1.9 mL/min | 2.0 mL/min | 2.1 mL/min | 2.2 | 2.3 | 2.4 | ||
CF | 75 | 74.69 ± 0.08 | 74.62 ± 0.05 | 74.59 ± 0.02 | 74.63 ± 0.02 | 74.62 ± 0.05 | 74.63 ± 0.04 |
BA | 250 | 247.64 ± 0.01 | 247.61 ± 0.02 | 247.55 ± 0.01 | 247.68 ± 0.01 | 247.61 ± 0.02 | 247.59 ± 0.01 |
PP | 25 | 24.24 ± 0.04 | 24.23 ± 0.04 | 24.18 ± 0.04 | 24.23 ± 0.04 | 24.23 ± 0.04 | 24.23 ± 0.04 |
BP | 25 | 24.25 ± 0.06 | 24.28 ± 0.04 | 24.23 ± 0.09 | 24.27 ± 0.06 | 24.28 ± 0.04 | 24.25 ± 0.10 |
BHA | 200 | 197.61 ± 0.01 | 197.58 ± 0.02 | 197.52 ± 0.01 | 197.58 ± 0.01 | 197.58 ± 0.02 | 197.58 ± 0.02 |
BHT | 200 | 198.7 ± 0.01 | 198.75 ± 0.03 | 198.67 ± 0.01 | 198.71 ± 0.01 | 198.75 ± 0.03 | 198.75 ± 0.02 |