Table 2 Analytical performance data for the proposed Method

Linearity range (µg/mL)

0.2-2.0

0.5–25.0

0.1-2.0

Limit of detection (LOD)^a(µg/mL)

0.02

0.18

0.02

Limit of Quantitation (LOQ)^b(µg/mL)

0.06

0.50

0.06

Regression equation

P = 0.43 C + 5 × 10^− 5

P = 2.46 C – 0.23

P = 0.85 C + 0.11

Correlation coefficient (r)

0.9999

0.9999

0.9999

Standard deviation (S.D)

1.97

1.36

1.83

Percentage relative standard deviation (%RSD)

1.97

1.36

1.83

 S.D. of the residuals (S_y/x)

0.004

0.25

0.009

 S.D. of the intercept (S_a)

0.002

0.14

0.005

 S.D. of the slope (S_b)

0.002

0.01

0.005