食品科学 ›› 2008, Vol. 29 ›› Issue (3): 393-395.

• 分析检测 • 上一篇    下一篇

三波长-分光光度法测定千山刺五加叶和果总黄酮的含量

 张兰杰, 辛广, 陈华, 周晓旋   

  1. 鞍山师范学院化学系; 鞍山师范学院化学系 辽宁鞍山114007; 辽宁鞍山114007;
  • 出版日期:2008-03-15 发布日期:2011-08-24

Determination of Total Flavonoids in Qianshan Acanthopanax senticosus Leaves and Fruits by Three-wavelength Spectrophotometry

 ZHANG  Lan-Jie, XIN  Guang, CHEN  Hua, ZHOU  Xiao-Xuan   

  1. Department of Chemistry, Anshan Normal University, Anshan 114007, China
  • Online:2008-03-15 Published:2011-08-24

摘要: 采用三波长-分光光度法测定千山刺五加叶和果中黄酮的含量,消除了由于刺五加叶和果中黄酮光谱吸收峰不对称给定量分析造成的影响,并校正了由于干扰组分的吸收光谱具有线性吸收产生的基线倾斜。结果表明:回归方程ΔA=88.795C-0.2060;相关系数r=0.9994;黄酮浓度在0~40.6μg/ml范围内,分别在波长λ1=463nm、λ2=417nm、λ3=382nm测吸光度时,则ΔA与浓度C之间呈良好的线性关系,可按标准曲线法进行定量分析。本法的回收率为96.86%~102.46%;变异系数小于0.136%。方法的准确度与精密度均令人满意,而且操作简便易行。

关键词: 黄酮类化合物, 千山刺五加, 叶, 果, 三波长-分光光度法

Abstract: Determination of flavonoids in Qianshan Acanthopanax senticosus leaves and fruits by three-wavelength spectrophotometry can eliminate the absorbance error of interfering components, turbid solution and the scattering effect. Back-ground changed with concentration changed and asymmetric absorption peak problems can be solved also. The regression equation of concentration ΔA was obtained: ΔA =88.795C-0.2060 with a relation coefficient), r=0.9994. The experimental results demostmte the total flavonoids concentrations in 0~40.6 6μg/ml withΔA obeying linear relation. When the absorbanee was measured at wavelength λl=463 nm, λ2=417 nm andλ3=382 nm. The recovery is 96.86%~102.46% and the coeficient of variation is 0.136%. The method is more advantageous than tranditional spectrophotometry method.

Key words: flavonoids, Qianshan Acanthopanax senticosus, leaves, fruits, three-wavelength spectrophotometry