Table 1 Statistical data of some analytical parameters of the proposed methods

Linear range (µg/mL)

0.5–9

1–14

1–10

1–12

Slope ± SD

0.0024 ± 1.76E−05

0.0012 ± 1.01E−05

119.05 ± 0.0001

0.0053 ± 5.09E−05

Intercept ± SD

− 2.6E−05 ± 9.26E−05

0.0005 ± 8.42E−05

− 0.0015 ± 0.0009

− 0.0009 ± 0.0004

r *

0.9998

0.9998

0.9997

0.9998

r² *

0.9996

0.9996

0.9994

0.9996

Number of determinations

5

5

5

5

LOD (µg/mL)

0.15

0.23

0.25

0.20

LOQ (µg/mL)

0.46

0.70

0.74

0.62