发明名称 |
Method of switching ports of a switching valve of a gas chromatography-mass spectrometry apparatus |
摘要 |
A method of operating a switching valve of a GC-MS apparatus is provided with installing a sample injector; connecting a first capillary column downstream of the sample injector; installing a heart-cutting unit downstream of the first capillary column; installing a first interconnecting column and a second capillary column to the heart-cutting unit respectively; connecting a switching valve to the heart-cutting unit via a first interconnecting column and a second capillary column respectively wherein the switching valve includes a plurality of ports; connecting the switching valve to an MS via a second interconnecting column; and switching ports to create different sample loops for passing compounds from the heart-cutting unit to the MS or passing compounds from the heart-cutting unit to the discharge column to be purged.
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申请公布号 |
US8592755(B2) |
申请公布日期 |
2013.11.26 |
申请号 |
US201213609301 |
申请日期 |
2012.09.11 |
申请人 |
LU HONGLIANG;LIN KAI;YU JING;ZHANG FENG;CHINA TOBACCO FUJIAN INDUSTRIAL CO., LTD. |
发明人 |
LU HONGLIANG;LIN KAI;YU JING;ZHANG FENG |
分类号 |
H01J49/04 |
主分类号 |
H01J49/04 |
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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