Abstract: Glucose and Fructose content of white sugar is determined by enzymatic conversion of the sugars to coloured compounds measured using a spectrophotometer in the wavelength range 334 nm to 365 nm. The method has Official Status and is suitable to check for compliance with the EU limit of invert sugar (0.04 g/100 g) in white sugar. For white sugars containing between 0.001 g/100 g and 0.04 g/100 g glucose + fructose, the absolute difference between two results obtained under repeatability conditions should not be greater than 0.002 g/100 g and under reproducibility conditions not greater than 0.003 g/100 g.
Online Access to ICUMSA Method GS2-4 (2007)
Access to the online Version of ICUMSA Method GS2-4 (2007) can be obtained from the Sugar Industry Website, operated by Bartens. The online access for two years costs EUR30 (+ 19 % VAT for German and EU citizens without EU VAT No.).