发明名称 Flugzeit-Massenspektrometer mit Gasphasen-Ionenquelle
摘要 A high particle density in the exhaust volume of a gas-phase ion source and simultaneously a very low particle density in the flight path of the time-of-flight mass spectrometer results in a high sensitivity while simultaneously maintaining a large dynamic range of the intensity display. In order to achieve this, it is necessary to divide the time-of-flight mass spectrometer into two or more regions of different pressure, the different regions being separated by a gas-flow impedance. A maximum particle density in the exhaust volume while simultaneously maintaining a minimum particle density in the flight path can be obtained by integrating the gas-flow impedances (3, 6) directly into the electrodes (1, 2) of the ion source. <IMAGE>
申请公布号 DE4322102(C2) 申请公布日期 1995.08.17
申请号 DE19934322102 申请日期 1993.07.02
申请人 BERGMANN, THORALD, DR., 82441 OHLSTADT, DE;BERGMANN, EVA MARTINA, 82441 OHLSTADT, DE 发明人 BERGMANN, THORALD, DR., 82441 OHLSTADT, DE
分类号 G01N27/62;H01J27/02;H01J49/10;H01J49/40 主分类号 G01N27/62
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