Calibrator concentrations [ng/ml]
Precision [RSD, %]
a
Accuracy [bias, %]
b
F
NF
F
NF
F
NF
0.1
0.1
0.8
3.2
1.2
-0.4
0.5
0.5
4.7
16.5
-5.7
2.6
2.0
2.0
1.8
10.0
2.0
-1.4
4.0
4.0
2.0
10.4
1.0
-5.9
10.0
9.8
3.8
9.1
-0.7
6.8
40.0
39.4
2.3
10.4
2.4
-1.7
a: RSD, relative standard deviation calculated as SD/mean × 100
b: Bias, calculated as (mean-specified concentration)/spec. concentration × 100
Table 1:
Linearity, accuracy and precision for fentanyl (F) and norfentanyl (NF) in serum (
n
=8).
