Analyte Name QC sample Aa (%CV)b Bc(%CV)b Process efficiency(%PE)d
9-cRA LQC 39797(3.3) 40634(1.3) 97.9
MQC 890967(4.2) 943410(0.4) 94.4
HQC 1816689(1.3) 1849191(0.6) 98.2
4-oxo-9-cRA LQC 38972(3.0) 39546(4.9) 98.5
MQC 387387(7.7) 418743(0.9) 92.5
HQC 896161(1.3) 922983(8.8) 94.2
aMean area response of six replicate samples prepared by spiking before extraction (n=6)
bCoefficient of variation
cMean area response of six replicate samples prepared in reconstitution solution (n=6)
dA/B×100
Table 4: Process efficiency.