发明授权
- 专利标题： Heated column inlet gas chromatography method and apparatus
- 专利标题（中）： 加热柱入口气相色谱法和仪器
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申请号： US402327申请日： 1989-09-05
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公开(公告)号： US5048322A公开(公告)日： 1991-09-17
- 发明人: Joseph F. Hiller , Terrence McCabe , Paul L. Morabito
- 申请人： Joseph F. Hiller , Terrence McCabe , Paul L. Morabito
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： G01N30/02
- IPC分类号： G01N30/02 ; G01N30/08 ; G01N30/10 ; G01N30/12 ; G01N30/16 ; G01N30/30
摘要：
The invention describes a large volume on-column gas chromatographic method for analyzing trace levels of high molecular weight and polar compounds in a sample and an apparatus for performing the method. A column inlet coupled to an analytical column is heated rapidly to concentrate difficult to chromatograph compounds onto the analytical column resulting in an increase in the detectability of the compounds.
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