中草药猫人参与其同科同属植物的光谱分析与鉴别

本文用紫外光谱和荧光光谱等方法对猫人参与其同科同属的木天蓼、藤梨根进行了分析与鉴别。结果表明 :在 2 54nm紫外灯下 ,猫人参水溶液几无荧光 ,而木天蓼、藤梨根水溶液均显较强荧光 ;三种药材提取液的紫外光谱和荧光光谱存在明显差别。

Spectral Analysis of Maorenshen (Actinidia valvata) and Its Confusable Materials

This article reports the spectral analysis of Maorenshen (Actinidia valvata) and its confusable materials Actinidia chinensis and Actinidia polygama by fluorescence test, ultraviolet spectrophotometry and fluorescence spectrophotometry. Strong green or blue fluorescence was observed at UV 254 nm in aqueous solutions of Actinidia chinensis and Actinidia polygama, and was barely seen in that of Maorenshen. There were also obvious differences among the ultraviolet spectra and fluorescence spectra of the extracted solutions of the three materials. No obvious absorption band was observed in the UV spectra of ethanol-extracted solution of Maorenshen, an absorption band at 280 nm was observed in the UV spectra of Actinidia chinensis and Actinidia polygama in ethanol extract-solutions. There were also different wavelength and strength in fluorescence spectra among extracted solutions of Maorenshen, Actinidia chinensis and Actinidia polygama. Therefore, it is feasible to identify Maorenshen (Actinidia valvata) and its confusable materials by ultraviolet spectrophotometry and fluorescence spectrophotometry.