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目的:建立沙塘木药材的鉴别方法。方法:采用生药学鉴别、薄层层析和紫外光谱手段对沙塘木进行定性分析。结果:沙塘木药材含有木纤维束、具缘纹孔导管、长方形薄壁细胞、特征性纹孔碎片、棕色块等;经5%硫酸乙醇显色、365nm紫外灯照射下薄层析硅胶板显示特征性斑点;沙塘木乙醇提取物在280nm波长附近具有最大紫外吸收。结论:采用性状分析法、粉末鉴别法、薄层层析法、紫外光谱法对沙塘木药材进行真伪鉴别,方法简单,结果准确。
Objective: To establish the identification method of medicinal herbs in sand pond. Methods: The crude drug was identified by TLC, TLC and UV spectroscopy. Results: Medicago sativa wood fiber containing wood fiber bundle, with margins of pits, rectangular parenchyma cells, characteristic pits fragments, brown blocks, etc .; by 5% sulfuric acid color, 365nm UV light irradiation thin layer silica gel plate Show characteristic spots; sand Tongmu ethanol extract has the maximum UV absorption near 280nm wavelength. Conclusion: The method of character analysis, powder identification, thin layer chromatography and ultraviolet spectroscopy were used to identify the authenticity of sand wood medicinal materials. The method was simple and the results were accurate.