Table 6 Repeatability and intermediate precision of ESP and NAP
Mean value of three replicate injections of NAP | ||||||
|---|---|---|---|---|---|---|
80% Concentration | 100% Concentration | 120% Concentration | ||||
RT | Peak area | RT | Peak area | RT | Peak area | |
Intra-day precision | 5.95 | 1,124,957 | 5.93 | 1,401,766 | 5.94 | 1,691,046 |
Inter-day precision | 5.97 | 1,124,636 | 5.96 | 1,401,854 | 5.93 | 1,691,849 |
% RSD | 0.02 | 0.02 | 0.00 | 0.00 | 0.03 | 0.03 |
Mean value of three replicate injections of ESP | ||||||
|---|---|---|---|---|---|---|
80% Concentration | 100% Concentration | 120% Concentration | ||||
RT | Peak area | RT | Peak area | RT | Peak area | |
Intra-day precision | 9.04 | 72,647 | 9.00 | 89,263 | 9.04 | 105,819 |
Inter-day precision | 9.04 | 72,379 | 9.02 | 89,304 | 9.05 | 106,398 |
% RSD | 0.03 | 0.08 | 0.21 | 0.03 | 0.10 | 0.39 |