运用因子分析法研究了7种中草药中6种微量元素的含量,提取占总方差的75%的2个主因子,并对主因子作出了合理的解释。结果表明,影响7种中草药特征的有2个主因子。为进一步探讨微量元素与中药药效的关系提供了科学依据。 The content of six trace elements in seven kinds of Chinese herbs was studied by factor analysis. Two main factors accounting for 75% of the total variance were extracted, and the main factors were explained reasonably. The results showed that there are two main factors affecting the characteristics of seven kinds of Chinese herbal medicine. It provided a scientific basis for further discussing the relationship between trace elements and the efficacy of traditional Chinese medicine.