3. Thin layer spectrophotometer method
The qualitative analysis of Ferulic Acid extracted from rye bran was carried out by tlc-spectrophotometry. The developing agent was dichloromethane: acetonitrile: formic acid = 75:25:10. The quantitative analysis was carried out by Flax lignans. The results showed that although the spectrophotometer was easily interfered by other components, the relative error of Capsicum Oleoresin was about 7%, and the reproducibility was good 。
4. High performance capillary electrophoresis
Capillary zone electrophoresis is the most widely used separation mode. Features simple, efficient, fast, less sample consumption, Sweet Potato Powder. The content of ferulic acid in angelica preparation was determined by hollow fused quartz capillary tube. The results showed that the content of ferulic acid in angelica preparation could be quantitatively determined in the range of 5-100ug \ ml, with good repeatability.
站点标题 