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学科主题: 物理化学
题名: Study of Conical Shape Columns for Preparative and micro-Liquid Chromatography
作者: Guan YF(关亚风) ;  Ma JP(马继平) ;  Chen LX(陈令新) ;  Yang BC(杨丙成)
会议名称: The 6th Sino-German Symposium on Chromatography
会议日期: 2002-03-16
出版日期: 2002-03-16
会议地点: Germany
其他题名: 锥型制备柱和锥型微液相色谱柱的研究
通讯作者: Guan Yafeng
部门归属: 一室
主办者: Germany
摘要: Conical shaped columns of different angle were evaluated by visualization method and UV-vis detector connected at the column outlet.lt was found that at certain conditions the flow profile of mobile phase was flat instead of parabolic.The peak height is abort 35% higher than that of the conventional rod shape column under identical conditions,which implies that the dilution of target compound by mobile phase is at least 30%less than that of conventional column.This is very important for preparative liquid chromatography since the energy consume for evaporation of solvent will be 30% less. We found also that the separation efficiency of the conical columns is about 5-7% higher than that of rod shape columhs. The conical shape column was also used as the column end of micro-HPLC. It was found that the column efficiency was improved 35% that union type/glue type column end for columns of 0.53mm I.D. packed with 5 micro-meter bonded silica materials. The column efficiency was improvde even further at high flow rate. The peak asymmetric factor was in the range of 1.01-1.10 for the conical end column,as compared with 1.05-1.25of the union type end columns.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/111262
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Guan YF,Ma JP,Chen LX,et al. Study of Conical Shape Columns for Preparative and micro-Liquid Chromatography[C]. 见:The 6th Sino-German Symposium on Chromatography. Germany. 2002-03-16.
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