正交试验法是通过正交表来安排多因素试验的一种科学方法。其特点是试验均衡分散,水平整齐可比,所得数据计算简单。在对天然药物的研究中,如药物提取方法的优化、质量控制方法的建立以及药效学等方面的试验均会受到各种不同因素的影响和制约,采用正交试验法可快速准确地找到最? Orthogonal test method is through the orthogonal table to arrange a multi-factorial test of a scientific method. It is characterized by balanced test dispersion, the level of comparable, the calculated data is simple. In the study of natural medicine, such as the optimization of drug extraction methods, the establishment of quality control methods and pharmacodynamics and other aspects of the experiment will be subject to a variety of different factors and constraints, the use of orthogonal test method can quickly and accurately find most?