Condition Test LQC(30 ng/mL) LQC(30 ng/mL) LQC(30 ng/mL) MQC(300 ng/mL) MQC(300 ng/mL) MQC(300 ng/mL) HQC(1800ng/mL) HQC(1800ng/mL) HQC(1800ng/mL)
Mean conc. (ng/ml) RSD (%) Accuracy (%) Mean conc. (ng/ml) RSD (%) Accuracy (%) Mean conc. (ng/ml) RSD (%) Accuracy (%)
Room temperature for 4h 30.25±1.17 3.87 100.81 302.94±7.78 2.57 100.98 1813.2±29.74 1.64 100.73
Autosampler for 24h 27.65±0.92 3.32 92.17 286.20±12.11 4.23 95.40 1857±61.51 3.31 103.20
3-freeze thaw cycles at -80℃ 31.54±1.68 5.34 105.12 301.02±17.54 5.83 100.35 1907.40±58.91 3.09 105.96
-80℃ for 350 days 30.50±0.78 2.57 101.67 305.80±8.22 2.69 101.94 1858.80±45.17 2.43 103.27
Work-solution stability for 14 days 29.37±1.23 4.17 97.91 313.28±13.82 4.41 104.42 1984.60±111.72 5.63 110.25