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. 2019 Jul 6;24(13):2480. doi: 10.3390/molecules24132480

Figure 1.

Figure 1

Chromatograms of (a) rosemary extract (red line) in 70% v/v ethanol (50 g/L) after 3 h continued stirred extraction, and (b) rosmarinic acid reference solution (black line), measured at 330 nm.