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Quantification of Root Chicoric Acid in Purple Coneflower by Near Infrared Reflectance Spectroscopy

D. E. Gray*,a, C. A. Robertsc, G. E. Rottinghausd, H. E. Garrettb and S. G. Pallardyb

a Herb Pharm, Williams, OR, 97544
b School of Natural Resources
c Dep. of Agronomy
d College of Veterinary Medicine, Univ. of Missouri, Columbia, MO 65211



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  		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.

 




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