1Hsu L Y,Teng H. Influence of difference chemical reagents on the preparation of activated carbons from bituminous coal [J].Fuel Proctech, 2000, 64 (2):155.
10Rayford W E, Wing R E, Doane W M.Carboxyl-containing Starch Graft Polymer: Preparation and Use in Heavy Met Removal[J].J Appl Polym Sci,1979 ( 24 ) :105-113.