Compound

17 β-estradiol

Estrone

17 α-ethinylestradiol

Estriol

LOD^a (ng∙g⁻¹)

0.66

0.66

0.66

0.66

(signal-to-noise ratio)^b

14.4

21.8

30.0

25.8

CV (%)

10.53

9.95

10.00

6.37

LOQ^c (ng∙g⁻¹)

2.22

2.11

2.10

2.39

Std. Dev.

0.06

0.07

0.05

0.06

CV (%)

2.73

3.19

2.64

2.41