公开(公告)号：US09589776B2

公开(公告)日：2017-03-07

申请号：US15070433

申请日：2016-03-15

Applicant: SRI INTERNATIONAL

Inventor： Ashish Chaudhary ,  Friso Van Amerom ,  R. Timothy Short

IPC: H01J49/00 ,  H01J49/24

CPC classification number: H01J49/0027 ,  H01J49/0013 ,  H01J49/004 ,  H01J49/0054 ,  H01J49/0059 ,  H01J49/107 ,  H01J49/24

Abstract: A dual-ionization mass spectrometer includes a first mass spectrometer module forming a hard ionization mass spectrometer, a second mass spectrometer forming a soft ionization mass spectrometer, a vacuum ultraviolet light source positioned between the first and second modules, a housing encompassing the first and second sets of plates and the light source, and an inlet positioned to receive a sample of an analyte and provide it to at least one of the sets of plates. A method of detecting a substance includes receiving a sample of an analyte into a housing through an inlet, performing soft ionization mass spectrometry on the sample with a soft ionization mass spectrometer in the housing, performing hard ionization spectrometry on the sample with a hard ionization spectrometer in the housing if needed, and generating a detection result from at least one of the soft ionization spectrometry and the hard ionization spectrometry.

Abstract translation: 双电离质谱仪包括形成硬电离质谱仪的第一质谱模块，形成软电离质谱仪的第二质谱仪，位于第一和第二模块之间的真空紫外光源，包含第一和第二 一组板和光源，以及定位成接收分析物样品并将其提供给至少一组板的入口。 检测物质的方法包括通过入口将分析物的样品接收到壳体中，通过壳体中的软质电离质谱仪对样品进行软质电离质谱分析，用硬质电离光谱仪对样品进行硬质离子化分光光度法 如果需要，在壳体中，并且从至少一种软电离光谱法和硬质电离光谱法产生检测结果。