refractometry
... 折光指数 RI 折光测定法 refractometry 胀性流动 Dilatant flow ...
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薄荷醇和薄荷酮含量的测定方法有旋光测定法、折光指数法及乙酰化法。
There are some other ways to analyzed the contents of menthol and menthone, such as polarimetry, refraction index method and acetylation method.
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