-
1.
公开(公告)号:US20040222373A1
公开(公告)日:2004-11-11
申请号:US10836644
申请日:2004-04-29
申请人: SRI International
IPC分类号: H01J049/04
CPC分类号: H01J49/162 , H01J49/0445
摘要: A method and apparatus are provided for analyzing an analyte at low concentration in a liquid sample by photoionization and mass spectrometry. An inlet system is provided for direct injection of the liquid sample using a capillary tube. The method and apparatus allow for 20 to 2000-fold improvement of the lower detection limit of an analyte in a liquid sample compared to a conventional liquid chromatography/mass spectrometer apparatus.
摘要翻译: 提供了一种用于通过光电离和质谱法分析液体样品中低浓度分析物的方法和装置。 提供入口系统,用于使用毛细管直接注入液体样品。 与常规液相色谱/质谱仪装置相比,该方法和装置允许液体样品中分析物的检测下限提高20至2000倍。