Journal of Natural Products 2002-Apr
Evaluation of glucoiberin reference material from Iberis amara by spectroscopic fingerprinting.
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Increasing worldwide regulations require increased efforts toward validation of analytical and pharmacological reference materials. A detailed survey of glucoiberin, a prototype lead constituent of therapeutic value, using 1D/2D NMR, MS, and X-ray spectroscopy provided precise phytochemical data for structure assignment. Quantitative reference validation was achieved by the recently proposed qNMR method.