THE LIGNIN CONTENT IN BLACK LIQUID OF STRAW AS-AQ BY ULTRAVIOLET SPECTROPHOTOMETER  

作　　者：HaiqiangShi BingyueLiu XingqiangLi LongquanXu BeihaiHe 

机构地区：[1]StateKeyLaboratoryofPulpandPaperEngineering,SouthChinaUniversityofTechnology,Guangzhou510640 [2]DalianInstituteofLightIndustry,Dalian116034

出　　处：《天津科技大学学报》2004年第A02期91-96,共6页Journal of Tianjin University of Science & Technology

摘　　要：The measurement of lignin content in black liquid of straw AS-AQ by ultraviolet spectrophotometer(UV) is discussed in this paper. Different dilution multiple and contrast solutions have an effect on the measured results of the lignin content by UV. The calculation method for the absorption coefficient and the scanning spectrum property of liquor acidified by SO2 are introduced in this paper.The measurement of lignin content in black liquid of straw AS-AQ by ultraviolet spectrophotometer(UV) is discussed in this paper. Different dilution multiple and contrast solutions have an effect on the measured results of the lignin content by UV. The calculation method for the absorption coefficient and the scanning spectrum property of liquor acidified by SO2 are introduced in this paper.

关 键 词：紫外分光光度法 木质素 黑液 秸杆制浆液 多体稀释 

分 类 号：TS743[轻工技术与工程—制浆造纸工程] TQ351.377[化学工程]