Table 4.

Summary of stability in different storage conditions. n = 6.

Stability	JBD0131			DM131
	LQC	MQC	HQC	LQC	MQC	HQC
Room temperature stability, 6 h
CV%	2.80	2.03	5.29	2.93	2.51	5.16
RE%	-4.43	-2.13	-5.45	2.53	0.16	-3.42
Freeze–thaw stability, -80°C, three cycles
CV%	2.01	3.10	5.00	2.31	2.27	1.88
RE%	-4.02	-5.77	-7.53	-1.47	-1.84	-5.69
Extracted sample stability, 2–8°C, 9 h
CV%	2.17	2.19	4.19	1.56	1.24	1.00
RE%	-5.98	-8.01	-9.68	-8.58	-5.13	-11.59
Autosampler stability, 10°C, 24 h
CV%	2.30	0.95	4.04	3.98	8.25	3.26
RE%	13.22	6.80	4.67	7.76	1.32	0.86
Whole blood stability, 25°C, 3 h
CV%	7.15	0.96	3.24	1.65	4.04	1.48
RE%	-6.94	-2.09	-6.80	-2.71	-1.17	-4.44
Long-term storage stability, -40°C, 8 days
CV%	3.75	1.03	3.21	5.60	1.80	2.03
RE%	-2.49	-2.04	-2.54	-7.38	-4.46	-2.02
Long-term storage stability, -80°C, 42 days
CV%	3.56	2.31	1.93	3.91	3.37	1.10
RE%	3.17	11.96	4.35	-0.16	7.25	3.83

CV: Coefficient of variation; HQC: High quality control; LQC: Low quality control; MQC: Median quality control; RE: Relative error.