Roche Diagnostics
Operator’s Manual · Version 3.4 C-31
Cedex Bio analyzer 8 Data analysis methods
ISE measurements
ISE measurements
This section explains the calculations and checks used in electrolyte measurements.
The diagram below shows the individual steps carried out in an ISE calibration or an
ISE sample or control measurement:
Figure 5 Charts for steps in ISE measurements
ISE main calibration using ISE
Solution 1 and 2
Slope out or Range check
Slope calculation
(2-point calibration)
Calculation of Sol 1 Factor
Sol 1 Factor check
ISE sample measurement
ISE control measurement
Test Range check
Sample and calibrator
measurement
Result calculation
Correction
Laboratory conversion
Reference Range check
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