Quality control
Samples
Nominal
Concentration
Intra-assay Mean
concentration
Found (ng/ml)
SD % CV N Inter -assay Mean
Concentration
Found (ng/ml)
SD % CV N
LLOQ 0.2 0.212 0.0140 6.60 5 0.202 0.0100 4.95 5
LQC 0.74 0.766 0.1041 13.45 5 0.732 0.0695 9.49 5
MQC 37.3 37.886 1.7949 4.73 5 36.892 0.5955 1.61 5
HQC 75.06 75.342 4.5505 6.03 5 74.002 2.2540 3.04 5
SD: Standard Deviation; CV- Coefficient of Variance; N: Total number of observations for each oncentration; LLOQ: Lower Limit of Quantification; LQC: Lower Quality Control; MQC: Middle Quality Control; HQC: High Quality Control
Table 1: Precision studies of TMS (ng/ml).