|
Parameter
|
Method I
|
Method II
|
|---|
|
Concentration range (μg mL
-1
)
|
2.0-25.0
|
0.5-8.0
|
|
Limit of detection (LOD) (μg mL
-1
)
|
0.15
|
0.13
|
|
Limit of quantification (LOQ) (μg mL
-1
)
|
0.47
|
0.39
|
|
Correlation coefficient (r)
|
0.9999
|
0.9999
|
|
Slope
|
0.0352
|
0.107
|
|
Intercept
|
-0.0116
|
0.0203
|
|
S
y/x
|
0.003
|
0.005
|
|
S
a
|
0.002
|
0.004
|
|
S
b
|
0.0001
|
0.0009
|
|
%RSD
|
1.35
|
1.10
|
|
% Error
|
0.51
|
0.45
|
|
ε (l/mol./cm.)
|
5604
|
17034
|
-
Where:
- S
y/x
: Standard deviation of the residuals
- S
b
: Standard deviation of the slope
- % Error = % RSD/√n
- S
a
: Standard deviation of the intercept
- ε: Molar absorptivity
