Roche Diagnostics
C-16
Operator’s Manual · Version 3.4
8 Data analysis methods Cedex Bio analyzer
Photometric measurements
Test Range check (level rate)
This check determines whether the rate values from the nonlinear calibration modes
are within the monotonic curve area.
If the rate is not in the monotonic curve area, no valid end results are obtained.
The > Test Rng flag is displayed if the upper test range limit is exceeded.
The < Test Rng flag is displayed if the value falls below the lower test range limit.
Calculation of mean rate
This check is carried out for calibrators only.
The test parameter Replicate may be set to Single or Duplicate. If set to Duplicate, the
calibrators (1…6) are analyzed twice. The individual rates of the replicates are
averaged to provide a mean rate for the calibrators.
The mean is determined from the replicate results.
Rate of controls or samples.
Rate of the lowest deflection point, determined from Monotonic
Check (test parameter).
Rate of the highest deflection point, determined from Monotonic
Check (test parameter).
R
WP low
R
samp-n
R
WP high
≤≤
Mean rate of calibrators.
Rate of calibrators (equivalent to ).
Number of replicates.
RM
samp-n
R
samp-n
1() … R
samp-n
r()++[]
r
----------------------------------------------------------------------------
=
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