Mindray BA-88A, Руководство по эксплуатации

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6-3
Figure 6-1 Logit-Log 4P calibration curve
R
C
C1 C2 C3 C4
Logistic-Log 5P
Calibration formula:
)] ln ( exp[ 1
1
0
cC C b a
K R R
+ + − +
+ =
This calibration method adopts five parameters:
0
R
,
K
,
a
,
b
and
c
.
This calibration method requires at least five calibrators. The concentration (or
activity) of calibrator 1 is 0, and the corresponding
R
is equal to
R
0.
The
applications of the calibration method are the same with that of Logit-Log 4P, but this
method has a higher fitting.
Exponential 5P
Calibration formula:
] ) (ln ) (ln ln exp[
3 2
0
C c C b C a K R R
+ + + =
This calibration method adopts five parameters:
0
R
,
K
,
a
,
b
and
c
.
This calibration method requires at least five calibrators. The concentration (or
activity) of calibrator 1 is 0, and the corresponding
R
is equal to
0
R
0.
This
calibration method is applied to the calibration curve that the response increases
sharply when the concentration reaches a specific value. See Figure 6-2.
Figure 6-2 Exponential 5p calibration curve
R
C
C1 C2 C3 C4 C5
Polynomial 5P
Calibration formula:
3
0
2
0 0 )
100
( )
100
( )
100
( ln
R R
d
R R
c
R R
b a C
−
+
−
+
−
+ =