Buffer Solution usually containing a weak acid and its conjugate weak base, or a salt, of such a composition that the pH is held constant within a certain range.
通常指含有一种微酸和与之结合的一种微碱或盐，并能维持酸碱值基本恒定的溶液。
The results is the active constituent Emodin and Resveratrol had the strongest inhibition, and showed the inhibitory dependency of the pH and concentration in a certain range.
实验结果表明：虎杖中的大黄素、白藜芦醇均可以有效的减缓草酸钙的形成，从而抑制结石的生成；
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