. 2015 Oct 13;21:1151–1161.

Table 3. Representative quality controls of four cytokines diluted in assay buffer.

Analytes	IL-1β			IL-6			IFN-γ			TNF-α
Analytes	Experiment 1			Experiment 1			Experiment 1			Experiment 1
ID	expected pg/ml	Recovery % ²⁺	% CV	expected pg/ml	Recovery % ²⁺	% CV	expected pg/ml	Recovery % ²⁺	% CV	expected pg/ml	Recovery % ²⁺	% CV
QC1⁺	88–182	132	6.9	96–199	100	5	105–214	118	3	94–208	100	15
QC2⁺	485–1008	107	3.2	532–1105	100	7	566–1176	100	3	483–1003	100	5.1

	Experiment 2			Experiment 2			Experiment 2			Experiment 2
QC1⁺	88–182	112	2.4	96–199	100	6	105–214	100	0	94–208	100	4.7
QC2⁺	485–1008	107	9.4	532–1105	100	5	566–1176	101	1	483–1003	100	4.3

⁺ QC1, quality control at lower concentration ranges; QC2, quality control at higher concentration ranges. ²⁺ Measurement that was within the expected ranges was considered as 100% recovery. For the measurement higher than the upper ranges of the expected, the percent recovery is higher than 100%.