Table 2 Results of the benchtop and the freeze/thaw stability studies
Amount added (ng/mL) | Amount found (ng/mL) | % Found ± RSD | |
|---|---|---|---|
Bench top | |||
NIRMA | 3000 | 3345 | 111.51 ± 6.42 |
18,000 | 20,263 | 112.57 ± 6.24 | |
RITONA | 600 | 663 | 110.54 ± 4.81 |
18,000 | 18,711 | 103.95 ± 0.611 | |
Freeze and thaw 1st Cycle | |||
NIRMA | 3000 | 3302 | 110.08 ± 9.26 |
18,000 | 19,930 | 110.72 ± 2.68 | |
RITONA | 600 | 606 | 100.93 ± 6.29 |
18,000 | 19,667 | 109.26 ± 1.55 | |
Freeze and thaw 2nd cycle | |||
NIRMA | 3000 | 3344 | 111.47 ± 6.67 |
18,000 | 18,258 | 101.44 ± 7.96 | |
RITONA | 600 | 683 | 113.87 ± 4.1 |
18,000 | 17,696 | 98.31 ± 7.48 | |
Freeze and thaw 3rd cycle | |||
NIRMA | 3000 | 3239 | 107.97 ± 4.87 |
18,000 | 20,561 | 114.23 ± 5.13 | |
RITONA | 600 | 681 | 113.45 ± 7.52 |
18,000 | 19,540 | 108.58 ± 1.89 | |