%0 Journal Article %T Determining the presence of synthetic ingredients in wood biofuel %A Safonov, A.O. %K nitrogen, biofuel, wood , mass, definition , reactive, result , content, temperature %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 4 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov