| Stability |
Level |
A |
%CV |
B |
%CV |
% Change |
| Auto sampler stability (~77 h, 10°C |
LQC |
125.2 |
3.8 |
124.5 |
2.7 |
-0.56 |
| HQC |
19379.1 |
1.3 |
19557.5 |
2.0 |
2.02 |
| Bench top stability (~6.78 h, in ice cold water bath) |
LQC |
123.0 |
5.4 |
125.5 |
3.1 |
2.03 |
| HQC |
19828.5 |
1.0 |
19370.7 |
1.0 |
-2.31 |
| Freeze-thaw stability (Thee freeze-thaw cycle) |
LQC |
123.0 |
5.4 |
118.9 |
1.9 |
-3.37 |
| HQC |
19828.5 |
1.0 |
19733.9 |
1.0 |
-0.48 |
| Long term stability (133 days, below -50°C |
LQC |
126.3 |
4.1 |
123.1 |
2.2 |
-2.53 |
| HQC |
19633.2 |
1.3 |
19841. |
1.1 |
1.06 |
A=comparison sample concentration (ng/mL); B=stability sample concentration (ng/mL);
CV=coefficient of variation; |
|
