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n
∑L
i
1
n
Q=
n

Li
 n
∑
1

− ∑ (Ti Li ) − n
 1
n


M

n
∑ T 
i
1
n 


where:
M
Q
n
i
T
L
: Angular coefficient for the line
: Final point for the line
: Number of readings
: Number of reading (i)
: Times
: Readings
♦ Distance point-line
D =| Y − MX − Q |
where:
M
Q
X
Y
: Angular coefficient for the line
: Final point for the line
: Point Abscissa
: Point Ordinate
♦ Distance between two points
Y=
X − x0
( y1 − y 0 ) + y1
x1 − x0
where:
X
Y
x0
x1
y0
y1
: Abscissa
: Ordinate
: First Point Abscissa
: Second Point Abscissa
: First Point Ordinate
: Second Point Ordinate
Mathematical Functions for Clinical Chemistry
♦ VOLUMETRIC FACTOR (USED IN SAMPLE BLANK A TESTS)
K=
vS + vR1
vS + vR1 + vR2
where:
K
vS
vR1
vR2
Section I
: Volumetric factor
: Serum volume
: First reagent volume
: Second reagent volume
Chapter C
Functions - Analyses Prog. - Ctrls - Calib.
BT3000 PLUS
Rev.0, Soft Ver. 8
Page 8 of 32