用高效液相色谱对纯化样品进行了定性和定量分析，结果显示三次重结晶后胡萝卜素纯度为88.56%。
HPLC methods were used for the qualitative and quantitative analysis. The purity of carotene crystal was 88.56% by HPLC method.
钛对再结晶石墨制备过程的催化作用可以用液相转化机理来解释。
The catalytic role of titanium to preparing recrystallized graphite can be explained by the liquid phase transition mechanism.
方法利用液相色谱分离技术和重结晶方法获得冬凌草中的有效成分。
Methods Liquid chromatography and recrystallization were used to obtain the monomer of rubescensin A.
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