Lignin Lignin was analyzed using GPC LF-804 (a column for organic SEC(GPC)). Sample : Lignin 0.1%, 100micro-L Column : Shodex GPC LF-804 (8.0mmID*300mm) Eluent : 20mM H3PO4 + 20mM LiBr in (DMSO/DMF=80/20) Flow rate : 0.6mL/min Detector : Shodex RI Column temp. : 50°C