等吸光点紫外分光光度法测定红三叶草中总异黄酮含量的研究
目的应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点处(253.5nm)测定红三叶草中总异黄酮含量。结果研究表明等吸光点处的总吸光度与总异黄酮含量相关,而与二者的相对比例无关。测定的线性范围为2~8μg/m L,加样回收率为97.3%,相对标准偏差为1.08%。结论与已有的单标准品测试方法相比,以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品的实验方法更加稳定、准确,并且综合等吸光点紫外分光光度法快速、重复性好的优点,使得...
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Published in | 食品安全质量检测学报 no. 1; pp. 260 - 264 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
东北农业大学理学院应用化学系,哈尔滨,150030
2015
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Subjects | |
Online Access | Get full text |
ISSN | 2095-0381 |
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Abstract | 目的应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点处(253.5nm)测定红三叶草中总异黄酮含量。结果研究表明等吸光点处的总吸光度与总异黄酮含量相关,而与二者的相对比例无关。测定的线性范围为2~8μg/m L,加样回收率为97.3%,相对标准偏差为1.08%。结论与已有的单标准品测试方法相比,以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品的实验方法更加稳定、准确,并且综合等吸光点紫外分光光度法快速、重复性好的优点,使得此方法适用于红三叶草中异黄酮含量检测,可为一般的红三叶草异黄酮的提取纯化研究和生产厂家提供参考。 |
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AbstractList | 目的应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点处(253.5nm)测定红三叶草中总异黄酮含量。结果研究表明等吸光点处的总吸光度与总异黄酮含量相关,而与二者的相对比例无关。测定的线性范围为2~8μg/m L,加样回收率为97.3%,相对标准偏差为1.08%。结论与已有的单标准品测试方法相比,以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品的实验方法更加稳定、准确,并且综合等吸光点紫外分光光度法快速、重复性好的优点,使得此方法适用于红三叶草中异黄酮含量检测,可为一般的红三叶草异黄酮的提取纯化研究和生产厂家提供参考。 目的:应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点处(253.5nm)测定红三叶草中总异黄酮含量。结果研究表明等吸光点处的总吸光度与总异黄酮含量相关,而与二者的相对比例无关。测定的线性范围为2~8μg/mL,加样回收率为97.3%,相对标准偏差为1.08%。结论与已有的单标准品测试方法相比,以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品的实验方法更加稳定、准确,并且综合等吸光点紫外分光光度法快速、重复性好的优点,使得此方法适用于红三叶草中异黄酮含量检测,可为一般的红三叶草异黄酮的提取纯化研究和生产厂家提供参考。 |
Abstract_FL | Objective Isoabsorptive point ultraviolet spectrophotometry was used to determine the content of isoflavones in red clover. Methods The content of isoflavones in red clover was determined by ultraviolet spectrophotometry at isoabsorptive point (235.5 nm) and compared with the formononetin and biochanin A as mixture standard. Results The research showed that the absorbance at isoabsorptive point was related with the content of isoflavones but no relation with the respective percentage. The linear range of determination was 2~8 μg/mL, the average recovery was 97.3%, and the RSD was 1.08%. Conclusion Compared to conventional method using single standard, the detection with the mixture standard of formononetin and biochanin A is more steadily and accurately, with a rapid and good repeatability of isoabsorptive point. This method is suitable for the determination of content of red clover isoflavones, and can provide reference for extraction and purification of red clover isoflavones and manufacture factory. |
Author | 张晓松 于丽娜 张永忠 许晶 |
AuthorAffiliation | 东北农业大学理学院应用化学系 |
AuthorAffiliation_xml | – name: 东北农业大学理学院应用化学系,哈尔滨,150030 |
Author_FL | ZHANG Xiao-Song YU Li-Na ZHANG Yong-Zhong XU Jing |
Author_FL_xml | – sequence: 1 fullname: ZHANG Xiao-Song – sequence: 2 fullname: YU Li-Na – sequence: 3 fullname: ZHANG Yong-Zhong – sequence: 4 fullname: XU Jing |
Author_xml | – sequence: 1 fullname: 张晓松 于丽娜 张永忠 许晶 |
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DocumentTitle_FL | Isoabsorptive point determination of content of red clover isoflavones by ultraviolet spectrophotometry |
EndPage | 264 |
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Keywords | 鸡豆黄素 ultraviolet spectrophotometry formononetin isoabsorptive point 芒柄花黄素 biochanin A 紫外分光光度法 等吸光点 |
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Notes | ZHANG Xiao-Song;YU Li-Na;ZHANG Yong-Zhong;XU Jing;College of Science, Northeast Agricultural University 11-5956/TS |
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Snippet | 目的应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点... 目的:应用等吸光点紫外分光光度法测定红三叶草中总异黄酮含量。方法本文以芒柄花黄素(formononetin)和鸡豆黄素(biochanin A)为混合标准品,应用紫外分光光度法在等吸光收点... |
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SubjectTerms | 等吸光点 紫外分光光度法 芒柄花黄素 鸡豆黄素 |
Title | 等吸光点紫外分光光度法测定红三叶草中总异黄酮含量的研究 |
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