. 2017 Dec 13;10:21–33. doi: 10.1016/j.plabm.2017.12.001

Table 4.

Accuracy study on the 12 GEM PREMIER 4000 analyzers (G1–G12) at two levels. The results are presented as an average of 3 bias determinations in percent. For [H⁺], pCO₂, pO₂, Na⁺, K⁺, Ca²⁺ and Cl^-, calculations were based on sample concentrations similar to those of solutions A and B. For lactate, Hb and O₂Hb, calculations were based on sample concentrations similar to those of solutions A and D.

	[H⁺]		pCO₂		pO₂		Na⁺		Cl^-		K⁺		Ca²⁺		Lactate		Hb		O₂Hb
	Sol A	Sol B	Sol A	Sol B	Sol A	Sol B	Sol A	Sol B	Sol A	Sol B	Sol A	Sol B	Sol A	Sol B	Sol A	Sol D	Sol A	Sol D	Sol A	Sol D
G1	0.69^a	2.16^a	0.54^a	0.49^a	0.90^a	1.60^a	0.25^a	0^a	0.31^a	0.85^a	0.88^a	2.27^a	0.59^a	0.76^a	2.33^a	2.86^a	0.76	1.53	1.08^a	1.35^a
G2	1.62^a	1.27^a	1.06^a	0.44^a	1.10^a	1.15^a	0.25^a	0^a	0.92^a	0.20^a	0^a	0^a	0.88^a	0^a	1.16^a	0.52^a	1.44	1.67	–	–
G3	1.62^a	2.47^a	1.34^a	0.49^a	3.86^a	0.98^a	0.25^a	0.1^a	–	–	0^a	0^a	1.48^a	0^a	1.16^a	1.04^a	0.37	0.94	0.84^a	0.30^a
G4	2.11^a	2.47^a	2.39^a	0.40^a	0.68^a	0.53^a	0.17^a	0^a	–	–	0^a	0^a	0.89^a	1.50^a	0^a	1.47^a	3.12	1.60	1.18^a	1.67^a
G5	2.80^a	2.47^a	1.34^a	3.40^a	1.62^a	0.75^a	0.17^a	0.23^a	–	–	0^a	0^a	0.88^a	0.76^a	1.16^a	0.52^a	1.41	2	0.82^a	0.08^a
G6	0.93^a	3.64^a	1.13^a	1.46^a	2.37^a	5.40^a	0.17^a	0.10^a	–	–	0^a	0^a	–	–	–	–	1.04	2.8	1.49^a	1.09^a
G7	0.69^a	1.28^a	0.92^a	0.32^a	2.82^a	4.18^a	–	–	–	–	–	–	–	–	–	–	1.04	1.53	1.82^a	1.55^a
G8	0.93^a	0.22^a	2.09^a	0.49^a	3.90^a	1.71^a	0.17^a	0.10^a	–	–	0^a	0^a	–	–	2.33^a	0.86^a	1.37	1.53	1.21^a	1.50^a
G9	2.06^a	0.12^a	1.80^a	0.49^a	1.37^a	1.46^a	–	–	–	–	–	–	–	–	1.16^a	2.36^a	1.37	1.53	0.82^a	0.87^a
G10	1.62^a	1.40^a	2.26^a	1.77^a	1.53^a	0.82^a	0.57^a	0.45^a	–	–	0^a	0^a	0^a	0.54^a	2.33^a	1.67^a	1.37	1.06	0.65^a	0.81^a
G11	2.81^a	1.98^a	1.43^a	0.49^a	4.28^a	2.52^a	0.59^a	0.45^a	–	–	0^a	2.27^a	0.9^a	0.59^a	0^a	0.39^a	1.3	0.9	0.59^a	0.41^a
G12	1.62^a	1.28^a	1.82^a	1.46^a	2.72^a	2.43^a	–	–	–	–	–	–	–	–	2.33^a	2.99^a	–	–	–	–
Mean	1.6	1.7	1.5	1.0	2.3	2.0	0.3	0.2	0.6	0.5	0.1	0.5	0.8	0.6	1.4	1.5	1.3	1.6	1.1	1.0

SFBC specifications	4.0	4.0	8.0	8.0	8.0	8.0	2.0	1.8	2.5	2.5	3.5	3.5	2.3	2.3	10.0	10.0	–	–	10.0	10.0

[H⁺]: proton concentration, pCO₂: partial pressure of CO₂, pO₂: partial pressure of O₂, Na⁺: sodium, K⁺: potassium, Cl^-: chloride, Ca²⁺: calcium, Hb: hemoglobin, O₂Hb: oxyhemoglobin.

Result meets SFBC specifications [21].