Determination of Sorbic Acid in Cheese Samples by Rapid HPLC-DAD Method

Table 3

Summary of repeatability (intraday) and reproducibility (interday) precision data for sorbic acid by HPLC-DAD.

Compound concentration (μg·mL^−1)	Intraday	Interday
	Mean recovery % ± RSD %	Mean recovery % ± RSD %
5.0	100.115 ± 0.851	100.025 ± 0.651
20.0	100.240 ± 0.112	99.918 ± 0.498

Each value is obtained from five experiments (n = 5).