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报道了用薄层色谱扫描测定杜仲中氯原酸含量的方法，纯品其线性范围为０．５～３Ｍｇ／点，纯品的变异系数为１．９２％（ｎ＝５），回收率为１０１．４．％。
The method for the determination of chlorogenic acid in Eucommia ulmoides with TLC was reported. The linear range of the purified product was 0.5 ~ 3Mg / point, the coefficient of variation of pure product was 1.92% (n = 5), the recovery was 101.4. %.