发明名称 |
Gas chromatography system with column bifurcation and tunable selectivity. |
摘要 |
A gas chromatography system featuring column bifurcation and pressure tuning. The system of this invention incorporates a bifurcated system in which samples eluting from a first separation column are directed selectively through one of two or more additional separation columns. Flow directing is achieved through the use of valves which switch carrier gas which are outside of the path of the analyte mixture. Effective tuning of the system is provided by adjusting the intermediate pressure which controls the effective lengths of the initial separation column and the additional final separation columns. <IMAGE> |
申请公布号 |
EP0597602(A1) |
申请公布日期 |
1994.05.18 |
申请号 |
EP19930308478 |
申请日期 |
1993.10.25 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF MICHIGAN |
发明人 |
SACKS, RICHARD DOUGLAS;AKARD, MICHAEL LESTER |
分类号 |
G01N30/26;G01N1/00;G01N1/22;G01N1/26;G01N30/02;G01N30/12;G01N30/20;G01N30/24;G01N30/30;G01N30/32;G01N30/38;G01N30/40;G01N30/46;G01N30/62;G01N30/68;G01N30/78;G01N30/86 |
主分类号 |
G01N30/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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