Parameters determined Obtained values Linearity 5-25 (µg mL-1) Regression equation (Y=mx+c)   Y=9984x+1509.6 Slope 9984 Intercept 1509.6 Regression coefficient 0.9967 LOD 0.11 (µg mL-1) LOQ 0.33 (µg mL-1)

Table 2: Method parameters.