Determination of the molar substitution ratio of hydroxyethyl starches by gas chromatography

1983 ◽  
Vol 55 (2) ◽  
pp. 334-338 ◽  
Author(s):  
Ying Chi. Lee ◽  
David M. Baaske ◽  
James E. Carter
Keyword(s):  
Gas Chromatography ◽  
Substitution Ratio ◽  
Molar Substitution ◽  
Hydroxyethyl Starches

scholarly journals Analysis of Molar Substitution of Hydroxybutyl Group by Zeisel Reaction in Starch Ethers

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5509
Author(s):  
Xiao-Lei Man ◽  
Wei-Kang Peng ◽  
Jun Chen ◽  
Xue-Li Liu
Keyword(s):  
Gas Chromatography ◽  
Quantitative Analysis ◽  
Rapid Method ◽  
Molar Substitution

A new etherified starch, δ-hydroxybutyl starch (δ-HBS), was prepared by utilising 4-chlorobutan-1-ol as the etherifying reagent. The method of Zeisel gas chromatography for the determination of the molar substitution was described. This technique offers a simple and rapid method for quantitative analysis with reproducible results. Meanwhile, the mechanism of the Zeisel reaction was also investigated.

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