Preparation concentration (ng/mL) Intra-day precision Intra-day precision Intra-day precision Inter-day precision Inter-day precision Inter-day precision
Measured concentration (ng/mL)
RSD (%) Accuracy (%)
Measured concentration (ng/mL)
RSD (%) Accuracy (%)
10 10.51±0.50 4.72 105.07 10.72±0.43 4.05 107.22
30 31.76±1.01 3.18 105.87 31.89±0.82 2.58 106.28
300 320.00±6.04 1.89 106.66 316.56±6.51 2.06 105.52
1800 1935.40±38.82 2.01 107.52 1954.80±45.16 2.31 108.60