公开(公告)号：EP3232464A1

公开(公告)日：2017-10-18

申请号：EP17157149.0

申请日：2017-02-21

Applicant: Bruker Daltonics, Inc.

Inventor： MUNTEAN, Felician

IPC: H01J49/14 ,  H01J49/34

CPC classification number: H01J49/147 ,  H01J49/34

Abstract: The invention relates to a mass spectrometer having an electron impact ionization source which comprises an ejector for forming a beam of sample gas being driven in a first direction through an interaction region; a magnet assembly configured and arranged such that its magnetic field lines pass through the interaction region substantially parallel to the first direction; an electron emitter assembly for directing electrons toward the interaction region in a second direction being aligned substantially opposite to the first direction, wherein the electrons propagate along and are confined about the magnetic field lines until reaching the interaction region and forming sample gas ions therein; and a mass analyzer located downstream from the interaction region to which the sample gas ions are guided for mass analysis.

Abstract translation: 本发明涉及一种具有电子碰撞电离源的质谱仪，该电子碰撞电离源包括用于形成通过相互作用区域沿第一方向驱动的样品气体束的喷射器; 磁体组件，其被配置和布置成使得其磁场线基本上平行于所述第一方向地穿过所述相互作用区域; 电子发射器组件，用于将电子沿第二方向引导至所述相互作用区域，所述第二方向基本上与所述第一方向相反，其中所述电子沿所述磁场线传播并被限制在所述磁场线周围，直到到达所述相互作用区域并在其中形成样品气体离子; 以及位于所述相互作用区域下游的质量分析器，所述样品气体离子被引导至所述相互作用区域用于质量分析。

公开(公告)号：EP2413346A4

公开(公告)日：2016-12-28

申请号：EP10755709

申请日：2010-03-26

Applicant: UNIV OSAKA ,  MSI TOKYO INC

Inventor： TOYODA MICHISATO ,  AOKI JUN ,  MIKI SHINICHI

IPC: H01J49/10 ,  G01N27/62 ,  H01J27/02 ,  H01J37/05 ,  H01J49/06 ,  H01J49/14 ,  H01J49/40

CPC classification number: H01J27/024 ,  H01J37/05 ,  H01J49/14 ,  H01J49/147 ,  H01J49/401 ,  H01J49/403

公开(公告)号：EP2676286A2

公开(公告)日：2013-12-25

申请号：EP12746858.5

申请日：2012-02-14

Applicant: Massachusetts Institute Of Technology

Inventor： HUNTER, Ian, W. ,  HEMOND, Brian, D. ,  HEMOND, Harold, F.

IPC: H01J49/00

CPC classification number: H01J49/30 ,  H01J49/0013 ,  H01J49/0031 ,  H01J49/022 ,  H01J49/147 ,  H01J49/24

Abstract: A miniature, low cost mass spectrometer capable of unit resolution over a mass range of 10 to 50 AMU. The mass spectrometer incorporates several features that enhance the performance of the design over comparable instruments. An efficient ion source enables relatively low power consumption without sacrificing measurement resolution. Variable geometry mechanical filters allow for variable resolution. An onboard ion pump removes the need for an external pumping source. A magnet and magnetic yoke produce magnetic field regions with different flux densities to run the ion pump and a magnetic sector mass analyzer. An onboard digital controller and power conversion circuit inside the vacuum chamber allows a large degree of flexibility over the operation of the mass spectrometer while eliminating the need for high-voltage electrical feedthroughs. The miniature mass spectrometer senses fractions of a percentage of inlet gas and returns mass spectra data to a computer.

Abstract translation: 一种小型，低成本的质谱仪，能够在10至50 AMU的质量范围内进行单位分辨率。 质谱仪结合了几个功能，可以提高设计的性能，而不仅仅是可比较的仪器。 高效的离子源能够在不牺牲测量分辨率的情况下实现相对较低的功耗。 可变几何机械滤波器允许可变分辨率。 机载离子泵不需要外部泵浦源。 磁轭和磁轭产生具有不同磁通密度的磁场区域以运行离子泵和磁性部门质量分析器。 真空室内部的板载数字控制器和电源转换电路允许在质谱仪运行时具有较大的灵活性，同时无需高压电气馈通。 微型质谱仪感测入口气体百分比的分数，并将质谱数据返回到计算机。

公开(公告)号：EP2406811A1

公开(公告)日：2012-01-18

申请号：EP10714937.9

申请日：2010-03-10

Applicant: Adixen Vacuum Products

Inventor： DUCIMETIERE, Laurent ,  NOMINE, Cyrille ,  LARCHER, Jean-Eric

IPC: H01J49/14

CPC classification number: H01J49/147

Abstract: The invention relates to an ionization cell for a mass spectrometer (2), comprising: an ionization housing (10) comprising a first and a second electron input groove (11, 26) and one side (16) of which has an output groove (15) for passing ionized particles (14a, 14b, 14c) therethrough, a first working filament (13) placed opposite said first electron input groove (11) and intended to be supplied to produce an electron beam (12), and a second backup filament (22) placed opposite said second electron input groove (26) and intended to be supplied in the even the first working filament (13) fails so as to produce the electron beam, said input groove (26) being placed outside a front region (F) located opposite said first input groove (11). The invention also relates to a leak detector with a mass spectrometer, comprising such an above-described ionization cell.

Abstract translation: 用于质谱仪（2）的离子化电池包括：电离壳体（10），具有第一和第二电子输入槽（11,26），一侧（16）具有输出槽（15），用于使离子化 颗粒（14a，14b，14c）穿过其中，第一工作细丝（13）与第一电子输入槽（11）相对放置并且被供应以产生电子束（12），以及第二备用灯丝（22） 与第二电子输入槽（26）相对并且在第一工作灯丝（13）发生故障以供产生电子束的情况下供电，输入槽（26）位于相对的前部区域（F）的外侧 第一输入槽（11）。 本发明还涉及具有质谱仪的检漏仪，其包括这样的上述电离池。

公开(公告)号：EP2313796A2

公开(公告)日：2011-04-27

申请号：EP09798814.1

申请日：2009-07-17

Applicant: Schlumberger Technology B.V. ,  Prad Research And Development Ltd ,  Services Pétroliers Schlumberger ,  Schlumberger Holdings Limited

Inventor： DANIEL, Pierre, J. ,  POP, Julian, J. ,  TAHERIAN, Reza ,  DROCHON, Bruno

IPC: G01V5/04 ,  E21B47/00 ,  E21B47/12

CPC classification number: H01J49/145 ,  H01J49/0036 ,  H01J49/147 ,  Y10T436/21 ,  Y10T436/24

Abstract: Methods and apparatus for obtaining a mass spectrum of a sample and determining a concentration of a component of the sample by utilizing a model of chemical and electron ionization and the obtained mass spectrum.

公开(公告)号：EP2311060A2

公开(公告)日：2011-04-20

申请号：EP09784708.1

申请日：2009-07-16

Applicant: Micromass UK Limited

Inventor： BATEMAN, Robert, Harold

IPC: H01J27/02 ,  H01J49/14 ,  G01N31/12

CPC classification number: H01J49/147 ,  H01J27/02 ,  H01J49/0077

Abstract: An ion source is disclosed wherein a sample is introduced into the sample chamber (1) of the ion source in the gas phase via a sample introduction capillary tube (2). The sample is directed onto a heated surface (6) coated with an oxidising reagent such as copper oxide. Carbon in the sample is oxidised to form carbon dioxide. The resulting carbon dioxide molecules are then ionised by electron impact ionisation with an electron beam (3) and the resulting ions are passed to a mass analyser for mass analysis.

公开(公告)号：EP2006882A9

公开(公告)日：2009-07-22

申请号：EP07738812.2

申请日：2007-03-16

Applicant: HAMAMATSU PHOTONICS K.K. ,  Rigaku Corporation

Inventor： MATSUURA, Shigeki ,  TAKATA, Yoshihiro ,  ARII, Tadashi ,  OTAKE, Satoshi

IPC: H01J49/14 ,  G01N27/62 ,  G01N27/64 ,  H01J49/06 ,  H01J49/10

CPC classification number: G01N27/64 ,  H01J27/24 ,  H01J49/107 ,  H01J49/147 ,  H01J49/162

Abstract: An ionizing device 2 includes an ionization chamber 2a having an ionization space 2b for ionizing sample molecules A, filaments 23a and 23b to have an electron impact on the sample molecules A in the ionization space 2b, to ionize the sample molecules A, and an electric discharge tube 29 to irradiate the sample molecules A in the ionization space 2b with ultraviolet light, to ionize the sample molecules A.

公开(公告)号：EP2006882A2

公开(公告)日：2008-12-24

申请号：EP07738812.2

申请日：2007-03-16

Applicant: HAMAMATSU PHOTONICS K.K. ,  Rigaku Corporation

Inventor： MATSUURA, Shigeki ,  TAKATA, Yoshihiro ,  ARII, Tadashi ,  OTAKE, Satoshi

IPC: H01J49/14 ,  G01N27/62 ,  G01N27/64 ,  H01J49/06 ,  H01J49/10

CPC classification number: G01N27/64 ,  H01J27/24 ,  H01J49/107 ,  H01J49/147 ,  H01J49/162

Abstract: An ionizing device 2 includes an ionization chamber 2a having an ionization space 2b for ionizing sample molecules A, filaments 23a and 23b to have an electron impact on the sample molecules A in the ionization space 2b, to ionize the sample molecules A, and an electric discharge tube 29 to irradiate the sample molecules A in the ionization space 2b with ultraviolet light, to ionize the sample molecules A.

Abstract translation: 离子化装置2包括电离室2a，电离室2a具有用于电离样品分子A的电离空间2b，细丝23a和23b，以对电离空间2b中的样品分子A产生电子轰击，使样品分子A离子化， 放电管29以紫外线照射电离空间2b中的样品分子A，使样品分子A离子化。

公开(公告)号：EP1994546A2

公开(公告)日：2008-11-26

申请号：EP07750239.1

申请日：2007-02-08

Applicant: Varian, Inc. ,  Geist, J. Daniel ,  Diep, Jeffrey ,  Williams, Peter ,  Perkins, Charles W.

Inventor： GEIST, J. Daniel ,  DIEP, Jeffrey ,  WILLIAMS, Peter ,  PERKINS, Charles W.

IPC: H01J49/30 ,  H01J37/08

CPC classification number: H01J49/30 ,  H01J37/08 ,  H01J49/147

Abstract: A mass spectrometer includes a main magnet having spaced-apart polepieces which define a gap, the main magnet producing a magnetic field in the gap, an ion source to generate ions and to accelerate the ions into the magnetic field in the gap, the ion source located outside the gap, and an ion detector to detect a selected species of the ions generated by the ion source and deflected by the magnetic field. The ion detector is located in the gap at a natural focus point of the selected species of ions. The mass spectrometer may be used in a trace gas leak detector.

公开(公告)号：EP1659612A2

公开(公告)日：2006-05-24

申请号：EP05023178.6

申请日：2005-10-24

Applicant: Agilent Technologies, Inc. (a Delaware corporation)

Inventor： Wang, Mingda ,  Cirimele, Edward C.

IPC: H01J49/14

CPC classification number: H01J49/147 ,  H01J49/063

Abstract: An electron impact ion source includes an ionization chamber in which a first rf multipole field can be generated and an ion guide positioned downstream from the ionization chamber in which a second rf multipole field can be generated wherein electrons are injected into the ionization chamber along the axis (on-axis) to ionize an analyte sample provided to the ionization chamber.

Abstract translation: 电子碰撞离子源包括其中可以产生第一rf多极场的电离室和位于电离室下游的离子导向器，其中可以产生第二射频多极场，其中电子沿轴线注入电离室 （轴上）离子化提供给电离室的分析物样品。