发明名称 |
A method and an apparatus for analyzing trace impurities in gases |
摘要 |
The present invention relates to a method and an apparatus for analyzing trace impurities in gases, which enable to analyze a very small quantity of impurities by only a simple operation, without making the column arrangement or the structure of flow complicated. In the apparatus and the method, when the trace impurities are measured in ppb-sub ppb level by a combined analyzer which is equipped with an atmospheric pressure ionization mass spectrometer to the back of a gas chromatography, a mixed gas of various gases is used as a carrier gas or purified gases added to the gases outflowed from a gas chromatography. |
申请公布号 |
GB2347743(B) |
申请公布日期 |
2001.12.19 |
申请号 |
GB20000001596 |
申请日期 |
2000.01.24 |
申请人 |
* NIPPON SANSO CORPORATION |
发明人 |
AKIRA * NISHINA;TETSUYA * SATOU |
分类号 |
G01N27/62;G01N30/26;G01N30/72;G01N30/88;H01J49/04;(IPC1-7):G01N30/72 |
主分类号 |
G01N27/62 |
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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