Roche Cedex Bio - Calibration Mode Linear Regression

Roche Diagnostics
C-18
Operator’s Manual · Version 3.4
8 Data analysis methods Cedex Bio analyzer
Photometric measurements
Calibration mode Linear Regression
Linear regression analysis is carried out on the rates of all calibrators to find the line
of “best fit”. If only one calibrator has been set, either the slope of the linear
regression is fixed and the offset of the curve is determined from this calibrator, or
the rate of one calibrator is fixed and the slope determined.
Calculation of curve parameter R
0
(intercept):
Calculation of curve parameter F (factor):
Curve parameters.
Calibrator values.
Mean calibrator rate.
Number of calibrators.
Rates
Conc
R
0
individual
data
R
0
Σ CT
std-n
2
[]ΣRM
std-n
[]⋅{}ΣCT
std-n
RM
std-n
⋅[]ΣCT
std-n
[]⋅{}–
Σ CT
std-n
2
[]N⋅{}ΣCT
std-n
[]{}
2
–
------------------------------------------------------------------------------------------------------------------------------------------------------------------
=
F
Σ CT
std-n
[]{}
2
Σ CT
std-n
2
[]n⋅{}–
Σ CT
std-n
[]ΣRM
std-n
[]⋅{}ΣCT
std-n
RM
std-n
⋅[]n⋅{}–
---------------------------------------------------------------------------------------------------------------------------------------- -
=
R
0
, F
CT
std-n
RM
std-n
n