Resveratrol-Loaded Polymeric Nanoparticles: Validation of an HPLC-PDA Method to Determine the Drug Entrapment and Evaluation of Its Antioxidant Activity

Table 2

Precision results for the different levels of RVT in standard solutions.

RVT standard solution (µg/mL)	Measured concentration ± SD^a (µg/mL)	RSD^b (%)
Analysis repeatability (𝑛=10)
10	10.08±0.03	0.32
30	30.60±0.05	0.16
50	49.80±0.06	0.12
Intermediate precision (𝑛=3)
Day 1
10	9.65±0.04	0.43
30	30.21±0.38	1.25
50	50.36±0.04	0.09
Day 2
10	10.03±0.02	0.17
30	30.62±0.11	0.35
50	49.87±0.14	0.29
Day 3
10	9.53±0.14	1.51
30	29.82±0.11	0.37
50	50.15±0.09	0.18

aSD: standard deviation; bRSD: relative standard deviation.