Molarity of reagent | N | A (mg CO2) | mg CO2 ml−1 1 M KOH |
Calibration 1 (injection of Na2CO3) | |||
0.5 M KOH | 5 | 173.3 ± 1.4 | 34.7 ± 0.3 |
Calibration 2 (mixture of KOH and K2CO3) | |||
0.05 M KOH + 0.025 M K2CO3 | 7 | 16.7 ± 0.6 | 33.4 ± 1.2 |
0.1 M KOH + 0.05 M K2CO3 | 6 | 34.0 ± 1.0 | 34.0 ± 1.0 |
0.5 M KOH + 0.25 M K2CO3 | 6 | 175.8 ± 1.6 | 35.2 ± 0.3 |