| |
Method I |
Method II |
| Concentration (ng mL-1) |
RT (min) |
Area |
EP |
RT (min) |
Area |
EP |
| 5.0 |
7.133 |
0.6390 |
15430 |
6.99 |
0.6718 |
17877 |
| |
7.133 |
0.6417 |
15506 |
6.99 |
0.6799 |
17733 |
| |
7.133 |
0.6354 |
15430 |
7.01 |
0.6837 |
17866 |
| |
7.133 |
0.6399 |
15468 |
7.01 |
0.6714 |
17722 |
| |
7.137 |
0.6190 |
15559 |
7.01 |
0.6651 |
17801 |
| |
7.137 |
0.6469 |
15444 |
7.01 |
0.6800 |
17801 |
Mean
%RSD
SE |
7.134
0.0289
0.0008
|
0.6369
1.504
0.0039
|
15472
0.3301
20.85 |
7.003
0.1474
0.0042 |
0.6753
1.037
0.0028 |
17800
0.3628
26.36 |
|
| RT= Retention time, EP = Theoretical plates, RSD= Relative standard deviation, SE= Standard error |
| Table 4: Result analysis of injection precision repeatability of method I and method II. |
