发明名称 |
On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns |
摘要 |
Apparatus and method for on-line coupled liquid chromatography and gas chromatography analysis. The system includes a high-volume, liquid vaporizing chamber, or interface capillary tube which allows injection of a substantial volume of sample-carrying eluent and concentrates bands, obviating adverse effects on the resolution or peak shape of the components of interest. The vaporizing chamber is interposed between a packed or wall-coated open tubular capillary liquid chromatographic column and a capillary gas chromatographic column. The capillary liquid chromatographic column permits the use of small volumes of eluent and reduced flow rates.
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申请公布号 |
US5236593(A) |
申请公布日期 |
1993.08.17 |
申请号 |
US19920982266 |
申请日期 |
1992.11.25 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
CORTES, HERNAN J.;PFEIFFER, CURTIS D.;RICHTER, BRUCE E. |
分类号 |
G01N30/02;G01N30/16;G01N30/46 |
主分类号 |
G01N30/02 |
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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