Abstract
The analysis of Alfa grass lignin is examined, isolated from industrial black liquor of the Algerian Pulp and Paper Company using the soda process. The used experimental techniques are: UV/visible, microscopy (MEB), FTIR, spectroscopy, EDAX and for the first time, HPLC (high performance liquid chromatography), MS (mass spectrometry) and GC/MS (coupled gas chromatography/mass spectrometry) analysis that permit us the valorization of this product.