Plasma lot Absolute matrix effect
9-cRA 4-oxo-9-cRA
LQC MQC HQC LQC MQC HQC
Lot- 1 1.01 0.97 0.99 0.97 0.96 0.98
Lot-2 1.00 0.98 1.02 0.97 0.97 1.03
Lot-3 0.98 0.96 1.03 0.96 0.96 1.02
Lot-4 1.00 0.96 1.02 0.98 0.96 1.03
Lot-5a 1.00 0.98 1.02 0.97 0.96 1.01
Lot-6b 1.02 0.97 1.04 0.97 0.95 1.00
Mean 1.00 0.97 1.02 0.97 0.96 1.01
% CV 1.3 0.9 1.6 0.7 0.7 1.9
aHemolyzed plasma lot;bLipemic plasma lot
Table 5: Absolute matrix effect.