Fig. 1. Liquid chromatogram from coneflower root extract showing chicoric acid (1). Isocratic determination using 7:3 H2O:acetonitrile + 1% acetic acid with detection at UV 284 nm.
Fig. 1. Liquid chromatogram from coneflower root extract showing chicoric acid (1). Isocratic determination using 7:3 H2O:acetonitrile + 1% acetic acid with detection at UV 284 nm.