食品科学 ›› 2006, Vol. 27 ›› Issue (12): 582-587.

• 分析检测 • 上一篇    下一篇

毛细管电泳法分析蜂花粉中黄酮类化合物(英文)

卢挺,Edward P C Lai,Jorn C C Yu,胡风祖   

  1. 青海省产品质量监督检验所; 卡尔顿大学化学系; 中国科学院西北高原生物研究所
  • 出版日期:2006-12-15 发布日期:2011-11-23

Analysis for Flavonoids in Bee Pollens by Capillary Electrophoresis

 LU  Ting, Edward  P C Lai, Jorn  C C Yu, HU  Feng-Zu   

  1. 1.Qinghai Institute of Supervision and Inspection on Product Quality, Xining 810008, China;2.Ottawa-Carleton Chemistry Institute, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada; 3.Northwest Plateau Institute of Biology, The Chinese Academy of Sciences,Xining 810001, China
  • Online:2006-12-15 Published:2011-11-23

摘要: 使用毛细管电泳法(CE)检测了健康食品中常见的六种黄酮类化合物:橙皮甙、海棠甙、异鼠李素、山奈酚、槲皮素、芦丁。研究了一系列的试验参数,如:pH、缓冲溶液浓度、分离电压以及UV检测器波长等,以确定出最佳条件。使用H3BO3-Na2B4O7缓冲液(pH9.2),各分析物可在8min内分出。相对标准偏差(RSD):8次进样的迁移时间为0.77%~0.93%;峰面积为3.8%~8.6%;各检测限(S/N=3)范围为0.34μg/ml~2.9μg/ml,回收率为80.4%~113.9%。方法简单、灵敏,重现性高,线性好,无须固相萃取前处理,用于蜂花粉分析结果准确。

关键词: 分析, 黄酮类化合物, 蜂花粉, 毛细管电泳

Abstract: A capillary electrophoresis (CE) method has been developed for the determination of six bioactive flavonoids that are commonly found in health foods: hesperidin, hyperin, isorhamnetin, kaempferol, quercetin and rutin. The effects of several parameters, such as pH, buffer concentration, separation voltage and UV detector wavelength, were investigated to find the optimal conditions. Using a H3BO3-Na2B4O7 buffer (pH 9.2), the analytes can be separated within 8 min. The relative standard deviations of migration times in eight injections were between 0.77% and 0.93%, and those of the peak areas ranged from 3.8% to 8.6%. A high reproducibility and excellent linearity was observed over two orders of magnitude, with detection limits (S/N = 3) ranging from 0.34μg ml to 2.9μg ml for all the six analytes. Recoveries ranged from 80.4 % to 113.9 %. The new method is simple, reproducible and sensitive. No solid phase extraction for sample pretreatment is necessary. Analysis results are accurate in application to bee pollens.

Key words: analysis, flavonoids, bee pollen, capillary electrophoresis