Laboratory bleaching effluents from the chlorination and caustic extraction stages of mixed wood kraft pulp processing have been analysed both qualitatively and quantitatively for various chlorophenolics by using GC.A...Laboratory bleaching effluents from the chlorination and caustic extraction stages of mixed wood kraft pulp processing have been analysed both qualitatively and quantitatively for various chlorophenolics by using GC.A number of chlorinated derivaties of phenols,catechols,guaiacols and syringaldehydes have been detected and their concentrations are estimated.The results are compared with that of different agriculture residue/hardwood pulps,which were reported in literature.The concentrations of various compounds detected have also been compared with their reported 96LC50 values.展开更多
The determination of 2 chlorophenol, 24 dichlorophenol, 2,3,4 trichlorophenol, 2,3,4,6 tetrachlorophenol and pentachlorophenol in the water environment was studied by the high performance liquid chromatography with ...The determination of 2 chlorophenol, 24 dichlorophenol, 2,3,4 trichlorophenol, 2,3,4,6 tetrachlorophenol and pentachlorophenol in the water environment was studied by the high performance liquid chromatography with solid phase extraction in this paper.展开更多
文摘Laboratory bleaching effluents from the chlorination and caustic extraction stages of mixed wood kraft pulp processing have been analysed both qualitatively and quantitatively for various chlorophenolics by using GC.A number of chlorinated derivaties of phenols,catechols,guaiacols and syringaldehydes have been detected and their concentrations are estimated.The results are compared with that of different agriculture residue/hardwood pulps,which were reported in literature.The concentrations of various compounds detected have also been compared with their reported 96LC50 values.
文摘The determination of 2 chlorophenol, 24 dichlorophenol, 2,3,4 trichlorophenol, 2,3,4,6 tetrachlorophenol and pentachlorophenol in the water environment was studied by the high performance liquid chromatography with solid phase extraction in this paper.
