Research Article

Inter-Laboratory Validation of Method to Determine Residual Enrofloxacin in Chicken Meat

Table 1

Calibration curves and detection limits (LOD and LOQ) for individual laboratories.

Lab no. Regression lineLOD 
(ng/mL)
LOQ 
(ng/mL)
Measured range 
(ng/mL)
SlopeInterceptR2%RSD1)

Lab 10.00450.99968.057.2821.810 ~ 200
Lab 20.0100.99902.630.391.170.1 ~ 10
Lab 30.0240.99449.021.644.920.1 ~ 10

RSD was calculated by average response factor (RF) for triplicate analysis.
, where Ax is area of ENR; Cis is concentration of IS; Ais is Area of IS; Cx is concentration of ENR.
.