Table 2.

Assay validation parameters of the proposed HPLC method for determination of trans-resveratrol

Parameter	Trans-resveratrol
Accuracya (mean recovery  % ± SD)	98.78 ± 0.45
Precision
Repeatabilityb	±0.78
Intermediate precisionc	±1.79
Linearity
Slope	158,164
Intercept	+4266.8
Correlation cofficient (r)	0.9991
Range (mg L−1)	0.10–40
LODd (mg L−1)	0.03
LOQd (mg L−1)	0.10

^aAverage of (n = 3), average five concentrations (0.5- 30 mg L⁻¹) for trans-resveratrol

^bThe intraday (n = 3), average of three concentrations (0.5, 10 and 30 mg L⁻¹) for trans-resveratrol repeated three times within the day

^cThe inter-day (n = 3), average of three concentrations (0.5, 10 and 30 mg L⁻¹) for trans-resveratrol repeated three times in 3 days

^dDetermined via calculations, LOD = 3.3 (SD of the response/slope), LOQ = 10 (SD of the response/slope)