Fluorophotometric Determination of Total Glucoside of Paeony in Radices Paeoniae Alba Based on Alkali Hydrolysis
摘 要
基于白芍总苷可被50 g·L-1氢氧化钠溶液水解产生苯甲酸,并在pH 2.72的乙酸-乙酸钠缓冲溶液中,苯甲酸经激发光照射产生荧光,提出了荧光光度法测定中药白芍中白芍总苷含量的方法.在激发波长280 nm,发射波长310 nm处,反应体系的ΔF(即F0与F值之差)与苯甲酸的质量浓度在1.0~10.0 mg·L-1范围内呈线性关系.该方法用于白芍样品的分析,测得加标回收率为92.5 %~103.0%,相对标准偏差(n=6)为3.73%.
Abstract
Based on the hydrolysis of total glucosides of paeony (TGP) of radices paeoniae alba in 50 g·L-1 NaOH solution to give benzoic acid and on the fluorescence property of the benzoic acid produced as shown by its fluorescence spectrum at the wavelengths of 280 nm (λex) and 310 nm (λem) in an acetate buffer medium of pH 2.72,a fluorophotometric method for determination of TGP in radices paeoniae alba was proposed.Linear relationship was found between values of ΔF(F0-F) measured at the wavelengths mentioned above and concentration of benzoic acid in the range of 1.0-10.0 mg·L-1.The proposed method was used in the analysis of samples of radices paeoniae alba,giving values of recovery ranged from 92.5%-103.0%,and of RSD (n=6) of 3.73%.
中图分类号 O657.31
所属栏目 工作简报
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收稿日期 2009/6/28
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备注瞿白露(1982-),女,长沙人,硕士,主要从事中药化学成分提取分离及环境化学分析检测工作.
引用该论文: QU Bai-lu,YU Wen-feng,REN Feng-lian,LUO Yu. Fluorophotometric Determination of Total Glucoside of Paeony in Radices Paeoniae Alba Based on Alkali Hydrolysis[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2010, 46(9): 1040~1042
瞿白露,禹文峰,任凤莲,罗钰. 基于碱水解反应-荧光光度法测定白芍总苷的含量[J]. 理化检验-化学分册, 2010, 46(9): 1040~1042
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参考文献
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【3】蒋午峻,王巧,李小娜.白芍总苷的药理作用和质量控制方法研究进展[J].河北医科大学学报,2006,27(5):500-502.
【4】XU Hong-mei,WEI Wei,JIA Xiao-yi,et al.Effect and mechanisms of total glucosides of paeony on adjuvant arthritis in rat[J].Journal of Ethnopharmacology,2007,109(3):442-448.
【5】司晓萍,顾一炯.不同加工方法对白芍中芍药苷含量的影响[J].时珍国医国药,2004,15(6):336.
【6】钱亚南,刘信顺,张先芬.高效液相色谱法测定白芍总甙中芍药甙含量[J].中草药,1995,26(7):349-350.
【7】张雪荣.薄层扫描法测定不同生长年限白芍中芍药苷的含量[J].中草药,2000,31(11):832-833.
【8】陈勇川,穆海川,刘松青.高效毛细管电泳法测定芍药及成药中芍药苷的含量[J].华西药学杂志,2001,16(6):447-448.
【9】张克荣,白丽,徐赞美.RP-HPLC法同时测定白芍中芍药苷和芍药内酯苷的含量[J].药物分析杂志,2003,23(3):222-224.
【10】刘玉红,陈燕,易进海.HPLC法测定白芍总苷的含量[J].华西药学杂志,2002,17(4):295-296.
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