高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 216.

• 研究简报 • 上一篇    下一篇

碱性二苯基萘基甲烷染料褪色分光光度法测定肝素

徐红, 刘绍璞, 罗红群, 刘忠芳   

  1. 西南师范大学环境化学研究所, 重庆 400715
  • 收稿日期:2001-01-08 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 刘绍璞(1940年出生),男,教授,博士生导师,主要从事分子光谱研究.*现在贵阳医学院化学教研室工作.
  • 基金资助:

    国家自然科学基金(批准号:29875019)资助

Determination of Heparin with Basic Bisphenylnaphthylmethane Dyes by Fading Spectrophotometry

XU Hong, LIU Shao-Pu, LUO Hong-Qun, LIU Zhong-Fang   

  1. Institute of Environmental Chemistry, Southwest China Normal University, Chongqing 400715, China
  • Received:2001-01-08 Online:2002-02-24 Published:2002-02-24

关键词: 分光光度法, 肝素, 二苯基萘基甲烷染料

Abstract: A new spectrophotometric method for the determination of trace heparin has been studied. The method was based on the discoloration reaction between heparin and bisphenylnaphthylmethane dyes such as victoria blue 4R(VB4R), victoria blue B(VBB) and night blue(NB) in weak acid medium. The reduction in absorbance was directly proportional to the concentration of heparin. The linear ranges of heparin were from 0 to 2.4 μg/mLfor all systems. The molar absorptivities(ε) of the three systems were between 2.11×106 and 2.66×106L·mol-1 ·cm-1 and the sensitivity of VB4R system was the highest. Taking VB4Rsystem for an example, the effects of some coexisting substances on the determination of heparin have been investigated and the results showed that the method had a good selectivity. The method has been applied to determination of the heparin samples with satisfactory results.

Key words: Spectrophotometry, Heparin, Bisphenylnaphthylmethane dyes

中图分类号: 

TrendMD: