Objective: To establish the preparation method of levodopa analog (abbreviate: LDA) reference substance by AKTA Explorer 100 PreparativeChromatography System;
目的：建立制备色谱层析系统制备左旋多巴类似物（简称：LDA）对照品的方法；
2
This article introduces three kinds of preparativechromatography used in purifying bio molecules and active ingredient pharmaceutical compounds for drug discovery and manufacture.
本文介绍三类制备型层析系统，分别用在新药开发和制造领域中纯化生物性分子和药物有效成分。
3
Preparative high performance liquid chromatography (PHPLC) technique was used to separate and purify high purity of chlorogenic acid from Eucommia ulmoides Oliv.