方法采用薄层色谱法对炮制品中白藜芦醇苷和大黄素进行定性分析，并采用薄层扫谱法和HPLC法对大黄素进行定量分析。
Methods The qualitative analysis of piceid and emodin are taken by TLC, and content of emodin was determined by TLCS and HPLC.
结论：本方法精密度好，结果可靠，适合虎杖中白藜芦苷和白藜芦醇的定量分析。
CONCLUSION This method is accurate and reliable for the quantities analysis of piceid and resveratrol in the Roots of Polygonum Cuspidatum.
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