发明名称 |
GAS INLET SYSTEM FOR ISOTOPE RATIO SPECTROMETER |
摘要 |
A gas inlet system 20 for an isotope ratio spectrometer 1 and a method for coupling analyte gas to an isotope ratio spectrometer 1 are disclosed. A variable volume reservoir 5 is located between a supply of analyte gas 9,11 and a spectrometer 1. The reservoir's internal volume is controllably adjusted at a pre-determined rate to generate a defined flow of analyte gas or mixture to or from the reservoir 5. Analyte gas and carrier gas are taken up by the reservoir 5 on increasing the reservoir's internal volume and then expelled from the reservoir to the spectrometer 1 on decreasing the reservoir's internal volume. An open split 3,8 can be used together with the reservoir 5 to facilitate splitting away and hence dilution of analyte within the reservoir 5. A method for cleaning the gas inlet system 20 is provided, which involves flushing the system with carrier gas. |
申请公布号 |
EP3066449(A1) |
申请公布日期 |
2016.09.14 |
申请号 |
EP20140796495 |
申请日期 |
2014.11.10 |
申请人 |
THERMO FISHER SCIENTIFIC (BREMEN) GMBH |
发明人 |
SCHLUTER, HANS-JURGEN;SCHWIETERS, JOHANNES;WAPELHORST, ERIC;KRUMMEN, MICHAEL |
分类号 |
G01N1/38;G01N21/31;H01J49/04 |
主分类号 |
G01N1/38 |
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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