Roche Diagnostics
Operator’s Manual · Version 3.4 C-27
Cedex Bio analyzer 8 Data analysis methods
Photometric measurements
Standard Curve Deviation check This check is carried out with quantitative analysis for the main calibration. It is used
to inspect the deviation of each calibrator from the curve.
The scattering range within the monotonic range is determined for each calibrator,
using the following formula:
The following formula applies for each replicate:
The >Std Dev flag is displayed if the replicates are not within the defined range.
Test Range (level concentration)
check
This check is used with quantitative analysis. This check determines wether the
concentration is within the measuring range (test range).
The following flags are displayed if the result is not in the test range:
o < Test Rng is displayed if the result is below the test range lower limit.
o > Test Rng is displayed if the result exceeds the test range upper limit.
Reference Range check This check is carried out for samples with quantitative analysis. It compares the
sample result with the preset reference ranges.
Each sample concentration is determined using the following equation:
The following flags are displayed if the result is not in the reference range:
o <RR is displayed if the result is below the reference range.
o >RR is displayed if the result is above the reference range.
Nominal calibrator concentration.
Calibrator mean.
Number of replicates.
Test parameters for standard deviation (Factor, Offset).
CT
std-n
SD–[] CM
std-n
r() CT
std-n
SD+[]≤≤
Control or sample concentration.
Lower limit of the test range (test parameter).
Upper limit of the test range (test parameter).
Lower limit of reference range (test parameter).
Sample results in laboratory units.
Upper limit of reference range (test parameter).
To Next Page
Loading...
Need help?
General
