V.V. Dokuchaev Soil Science Institute TD-PY SOM derivatives classification

Contain more than 2000 compounds are indentified by NIST after pyrolysis GC MS of Chernozem soils. All substances are divided into classes according to their alleged origin: Polysaccharide derivatives, Nitrogen containing compounds, Aliphatic , Polyaromatic hydrocarbons, Lignin coumaric derivative, Lignine guaiacol derivative, Lignine syringic derivative, Aromatic, Indane, inden containing, Other and Artifact of column or packing.