Response function
(p=3; n=2)
Weighted (1/X) Quadratic Regression (within matrix)
Calibration range (m=5): 0.2-10 µg/ml
    series 1 series 2 series 3
Slope 0.4921 0.4729 0.4972
Intercept -0.05278 -0.04351 -0.05301
r2 0.9939 0.9974 0.9958
Trueness   (p=3; n=2)
    Absolutebias (µg/ml) Relative bias (%) Recovery (%)
0.1 µg/ml 0.004295 2.148 102.1
1 µg/ml 0.05569 5.569 105.6
2.5 µg/ml 0.07220 2.888 102.9
5 µg/ml 0.3170 6.339 106.3
10 µg/ml -0.04940 -0.4940 99.51
Precision  (p=3; n=2)
    Repeatability (RSD%) Intermediateprecision (RSD%)      
0.1 µg/ml 6.822 6.822
1 µg/ml 3.179 3.421
2.5 µg/ml 1.892 1.892
5 µg/ml 0.8241 1.447
10 µg/ml 1.865 2.281
Accuracy  (p=3; n=2)
    Beta-expectation tolerancelimits (µg/ml) Relative Beta-expectation tolerancelimits (%)  
0.1 µg/ml [ 0.1709 , 0.2377] [-14.54 , 18.84]
1 µg/ml [ 0.9690 , 1.142] [-3.101 , 14.24]
2.5 µg/ml [ 2.456 , 2.688] [-1.742 , 7.517]
5 µg/ml [ 5.066 , 5.568] [ 1.325 , 11.35]
10 µg/ml [ 9.325 , 10.58] [-6.751 , 5.763]
Linearity     (p=3; n=2)
  Range (µg/ml)
Slope
Intercept
r2
0.2-10
0.9973
0.08998
0.9979
 
LOD (µg/ml)
LOQ µg/ml)
  0.06061
0.2000
P: number of series of analysis; m: number of amount levels; n: number of replicates; RSD: Relative Standard Deviation.
Table 1: Validation results