Table 3.

Intra-day and inter-day precision (CV%) and accuracy of cetuximab quantification.

QC value (µg/mL)	Intra-day			Inter-day
	Mean	CV%	Accuracy	Mean	CV%	Accuracy
1	0.89*	8.0*	89.2*	0.933	14.7	93.3
1.8	1.66	9.5	92.0	1.74	9.7	96.8
90	79.7	2.8	88.6	88.4	9.5	98.3
175	178	2.5	101.7	180	12.4	103

Results from HT4 (A) and LT3 (B) peptides. *: Intra-day variability at LLOQ (1 µg/mL) was evaluated simultaneously with matrix effects in six individual batches of human plasma.