[Rapid Method for Determination of Furfural and 5-Hydroxymethyl Furfural of Ethanol-Water Hydrolysate of Biomass with UV Spectroscopy].

The soluble lignin and furan compounds in hydrolysate of lignocellulose biomass have absorbed peaks and inter-superimpose in UV spectroscopy. Therefore, this paper developed a method for the determination of furfural and 5-hydroxymethyl furfural in ethanol-water refining liquors of lignocellulose biomass based on UV spectroscopy. The study showed that there is a good and linear relationship between maximum absorption (λmax) and the concentration percent of 5-HMF (W(5-HMF)) of M, the regression coefficient up to 0.