基于香草醛-高氯酸显色反应测定灵芝三萜的方法探讨与修正

张倩倩,黄青

Revised method for determining Ganoderma lingzhi terpenoids by UV-Vis spectrophotometry based on colorimetric vanillin perchloric acid reaction

Qian-Qian ZHANG,Qing HUANG

图4 以齐墩果酸的质量为横坐标,最大吸收值为纵坐标,绘制标准曲线 A：不过原点拟合回归方程;B：过原点拟合回归方程

Fig. 4 Standard curve taking the mass of oleanolic acid as abscissa and the maximum absorption as ordinate. A: Not fix intercept at 0; B: Fix intercept at 0.