Methods: Orthogonal experiment design and single factor tests were used in optimizing the extraction and purification technology of Rhizoma Gastrodiae by measuring transition probability.
方法：以天麻药材指标性成分天麻素的转移率为指标，采用正交试验设计和单因素考察相结合的方法对天麻药材的提取、精制工艺进行优化。
There are many issues should be discussed in the research of EF, such as extraction, purification technology and quality control.
有效部位研究尚有许多问题需要探讨，如有效部位的提取、精制工艺及参数的优化，有效部位质量的全面控制等。
The technology conditions of using extraction and Purification of strawberry pigment by using the resin was studied in this paper.
研究以草莓为原料、用大孔树脂提取和纯化草莓色素的工艺条件。
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