%0 Journal Article
%T Development of Column Switching Systems in Industrial Gas Chromatography<br>工业过程在线控制气相色谱仪中柱切系统的研制
%A Xu Guowang
%A Lu Xin
%A Wang Minyan
%A Ye Fen
%A Zhang Yukui
%A Lu Peichang
%A <br>许国旺
%A 路鑫
%A 汪敏燕
%A 叶芬
%A 张玉奎
%A 卢佩章
%J 色谱
%D 1999
%I 
%X According to the home-made requirement of column switching systems in 23 industrial gas chromatographs in 300,000 Tons of olefin plant, based on the research work of the expert system on gas chromatography and movement laws of compounds of interest in columns, the suitable stationary phases were defined, and the column switching systems were designed by using combined cutting techniques which consist of backflushing, fore-flushing and heart cutting, and by controlling column lengths, flows, flow directions and temperatures. The practical applications showed the column systems satisfy the on-line monitoring requirement of the production process and can be used continually for 1-3 years.
%K gas chromatography
%K industrial gas chromatograph
%K column systems
%K cutting
%K multi-dimentional chromatography<br>气相色谱法
%K 在线色谱
%K 柱系统
%K 切换
%K 多柱系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D7F5F79B7B81B862BD91E0076E0ECDEF&yid=B914830F5B1D1078&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=EDA22B444205D04A&eid=7F5DDA4924737DF5&journal_id=1000-8713&journal_name=色谱&referenced_num=2&reference_num=2