Table 1 The developed methods’ analytical performance

Concentration range (µg mL⁻¹)

5.0–60.0

0.5–6.0

1.0–10.0

Intercept (a)

0.12

62.56

9.29

Slope (b)

0.02

139.30

77.95

Correlation coefficient (r)

0.9999

0.9999

0.9999

S_y/x

2.3 × 10^–3

2.93

1.72

S_a

1.6 × 10^–3

2.18

1.47

S_b

1.0 × 10^–4

0.64

0.22

%RSD

1.13

0.85

0.81

%Error

0.46

0.38

0.33

LOQ(µg mL⁻¹)

1.08

0.16

0.19

LOD (µg mL⁻¹)

0.36

0.05 0.06