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Synthesis of tea polysaccharide-Fe(Ⅲ)complex and determination of Fe(Ⅲ)

  • LI Yu-xian ,
  • PEI Xiao-hong
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  • 1. Department of Chinese Medicine, Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China;
    2. Pingdingshan Environmental monitoring station, Pingdingshan 467000, China

Online published: 2019-09-16

Abstract

Tea polysaccharide was abstracted with warm water, tea polysaccharide-Fe(Ⅲ)complex(TPC) was synthesized with tea polysaccharide and FeCl3 under the alkaline condition, The determination of Fe(Ⅲ) was conducted with the method of ferroin-Fe(Ⅱ) and atomic absorption spectrophometry. The results showed that: TPC is heavy brownish red and shapeless powder. It can dissolve in water, its solution is very stable at the pH from 3 to 12. Content of Fe(Ⅲ)in TPC is 20.71% by the method of ferroin- Fe(Ⅱ)and 20.13% by the method of atomic absorption.

Cite this article

LI Yu-xian , PEI Xiao-hong . Synthesis of tea polysaccharide-Fe(Ⅲ)complex and determination of Fe(Ⅲ)[J]. Journal of Tea Science, 2005 , 25(1) : 71 -74 . DOI: 10.13305/j.cnki.jts.2005.01.013

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