化橘红中多糖含量的分光光度法测定

Determination of Polysaccharide Content in Dried External Peel of Citrus Grandis(L.)Osbeck Var.Tomentosa Hort or Citrus Grandis(L.)Osbeck by Spectrophotometry

采用分光光度法，经苯酚－硫酸显色，于４９０ｎｍ波长处对化橘红中多糖含量进行了测定。结果表明，此法简单快速，灵敏度高，显色稳定，重现性好。

Using hydroxybenzene-sulfuric acid as coloring reagent,the polysaccharide content of dried external peel of Citrus Grandis(L.)Osbeck Var.Tomentosa Hort of Citrus Grandis(L.)Osbeck was determined by spectrophotometry at 490nm.As a result,this method is simple and quick,involving a high sensitvity,stable coloration and good reproducibility.