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Aristolochia sprucei (stem and leaf) crude extract in ethyl acetate analysis by HPLC using a Supelco™ LC18 (25 cm × 4.6 mm, Supelco®) analytic column in a Shimadzu Chromatograph with diode array detector (model CLASS-LC10). (A) AA I chromatogram control, Sigma commercial standard. (B) A. sprucei stem extract chromatogram. The Arrow indicates the presence of compatible signal with AA I. (C) A. spruce leaf extract chromatogram.
