Roche cobas b 123 - Page 77

Roche Diagnostics
Instructions for Use · Version 13.0 77
cobas b 123 POC system 3 Specifications
Performance data
K
+
Unit: [mmol/L]
Material: whole blood
Material: prepared dialysis solution
Ca
2+
Unit: [mmol/L]
Material: whole blood
Material: prepared dialysis solution
Cl
-
Unit: [mmol/L]
Material: whole blood
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 229 1.43 0.97 6.65 0.98
Table 3-104 Na
+
(1) Median absolute bias
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 682 -0.03 0.96 0.15 0.99
Table 3-105 K
+
(1) Median absolute bias
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 230 0.00 1.00 0.01 1.00
Table 3-106 K
+
(1) Median absolute bias
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 689 -0.010 0.95 0.05 0.94
Table 3-107 Ca
2+
(1) Median absolute bias
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 227 2.93 1.03 -0.01 0.99
Table 3-108 Ca
2+
(1) Median absolute bias
Comparison instrument No. of samples [n] Bias
(1)
Slope [b] Intercept [a] Pearson’s Corr. coeff. [r]
cobas b 221 system 657 1.2 1.15 -14.91 0.98
Table 3-109 Cl
-
(1) Median absolute bias