| 摘要: |
| ［摘要］ 目的 研究玉米苞叶药材提取液在不同梯度极性溶媒中的紫外-可见光谱特征，为制定该药材的鉴别方法提供依据。方法 采用不同梯度极性溶媒［蒸馏水、95%乙醇、乙酸乙酯、正丁醇、石油醚（60～90 ℃）］，分别以超声、冷浸、回流等不同提取方法提取玉米苞叶药材并制成相应的提取液，采用紫外-可见分光光度法对各药材提取液进行扫描测定其吸光度值，并构建相应的吸收图谱。检测波长扫描范围为200～800 nm，吸光度值为0.2～0.8。结果 玉米苞叶药材提取液在紫外-可见光谱中显示一定的特征。结论 本实验建立的紫外-可见光谱鉴别方法，对该药材的鉴别具有参考意义。 |
| 关键词: 玉米 苞叶 紫外-可见光谱 药物分析 |
| DOI：10.3969/j.issn.1674-3806.2018.09.14 |
| 分类号:R 282.5 |
| 基金项目: |
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| Identifying research on the extracting solutions of Zeamays L bracts by ultraviolet-visible spectroscopy |
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ZHOU Shu-guang, ZHEN Han-shen, ZHEN Dan-dan, et al.
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Department of Pharmacy, the People′s Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
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| Abstract: |
| ［Abstract］ Objective To study the features of ultraviolet-visible(UV-Vis) spectroscopy in extracting solutions of Zeamays L bracts in polar solvents with different gradients,and to provide a basis for quality control of the bracts. Methods The extracting solutions of Zeamays L bracts were made by ultrasound, cold soak and solvent refluxing methods respectively with different gradients of polar solvents［distilled water, 95% ethyl alcohol, ethyl acetate, n-butyl alcohol and petroleum ether(boiling range 60～90 ℃)］, and their absorbance values were measured by scanning using UV-Vis spectroscopy to establish the characteristic absorption spectra, with the range of detection wavelength being 200～800 nm and the absorbance values being 0.2～0.8. Results The extracting solutions of Zeamays L bracts displayed certain spectral features in UV-Vis spectroscopy. Conclusion The UV-Vis spectrum method established in this experiment has a reference meaning and great value for identification of Zeamays L bracts. |
| Key words: Zeamays L Bract Ultraviolet-visible(UV-Vis) spectroscopy Pharmaceutical analysis |
