i-SENS i-SmartCare 10, Operator'S Manual

Page: 129 / 133

9. Product Specifications
128 i-SmartCare 10 Blood Gas Analyzer
Principles
Measuring
Principles The i-SmartCare 10 Blood Gas Analyzer measures pH, blood gas ( p CO
2
,
p O
2
), electrolytes (Na
+
, K
+
, Ca
2+
, Cl
-
), hematocrit (Hct) and metabolite(Glu,
Lac) using the potentiometry (ion selective electrode), amperometry and
conductometry.
Measuring principles for each parameter are as follows:
Electrochemical
Potentiometry
(ion selective
electrode)
Amperometry Conductometry
pH,
p
CO
2
Na
+
, K
+
, Ca
2+
, Cl
-
p
O
2
, Glu, Lac Hct
Once a cartridge is installed into the analyzer, the instrument will
perform scheduled 1-point(Cal 1), 2-point(Cal 2) or O
2
(Cal 3) sensor auto
calibration periodically using three types of calibration solutions during
the uselife of a cartridge. When a sample is introduced, the analyzer
will measure electrical signals produced by the measuring principles
corresponding to each parameter, then calculate concentration using the
formula and display on the analyzer’s screen.