Research Article

Development and Validation of a HPLC-UV Method for the Evaluation of Ellagic Acid in Liquid Extracts of Eugenia uniflora L. (Myrtaceae) Leaves and Its Ultrasound-Assisted Extraction Optimization

Figure 2

HPLC-UV chromatograms from ellagic acid analytical standard (a) and E. uniflora leaf extract (b) using the validated conditions: Supelco Analytical C18 column (250 × 4.6 mm, 5 μm); mobile phase water/acetonitrile (85 : 15); flow rate of 1.0 mL min−1; λ = 254 nm; and injection volume of 10 μL. RT = retention time.
(a)
(b)