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Representative UV (upper) and CD (lower) chromatograms of glucosinolates, crude drug, decoction pieces and granules of Radix Isatidis. (A) R-goitron, (B) S-goitrin, (C) mixed glucosinolate references, (D) crude drugs of R. Isatidis (B10), (E) decoction pieces of R. Isatidis (B22), (F) granules of R. Isatidis (B35). 1: progoitrin, 2: epiprogoitrin, 3: R,S-goitrin, 3a: R-goitrin, 3b: S-goitrin.
