Xilitol in Tablet Candy

Xylitol is officially permitted as a food additive by the Ministry of Welfare in Japan on April 17, 1997. The chromatogram is an analysis of xylitol in tablet candy. Asahipak NH2P-50 4E column is quite useful for the analysis of sugar alcohols including xylitol. NH2P-50 is a polymer-based amino column, and packed with the polyvinylalcohol gel bonded with polyamine. It is good for quantitative analysis and can be washed with alkaline solvents.

(Sample pretreatment)
2% aqueous solution of the sample was passed through a 0.45 micron filter,
and the same volume of acetonitrile was added.

Sample : Tablet candy, 20micro-L
1. Xylitol
2. Sorbitol

Column       : Shodex Asahipak NH2P-50 4E (4.6mmID*250mm)
Eluent       : H2O/CH3CN=25/75
Flow rate    : 1.0mL/min
Detector     : Shodex RI
Column temp. : 30deg-C