公开(公告)号：US06884997B2

公开(公告)日：2005-04-26

申请号：US10391630

申请日：2003-03-20

申请人： Hideo Kashima ,  Izumi Waki ,  Yasuaki Takada ,  Hisashi Nagano ,  Katsumi Nagumo ,  Mitsuhiro Noda

发明人： Hideo Kashima ,  Izumi Waki ,  Yasuaki Takada ,  Hisashi Nagano ,  Katsumi Nagumo ,  Mitsuhiro Noda

IPC分类号： G01N27/62 ,  G01N1/00 ,  G01N1/02 ,  G01N1/04 ,  G01N1/22 ,  G01N1/28 ,  G01N1/40 ,  G01N27/68 ,  H01J49/04 ,  H01J49/10 ,  B01D59/54 ,  H01J39/34

CPC分类号： H01J49/049 ,  G01N2001/022 ,  G01N2001/2223 ,  G01N2001/4027 ,  Y10T436/11 ,  Y10T436/114165 ,  Y10T436/163333

摘要： A dangerous substance detecting apparatus comprises an oven for accommodating a wiping member stuck with a sample derived from a dangerous substance, a light source for emitting infrared rays for heating the sample, an ion source for ionizing the sample evaporated in the oven, a mass analyzer for performing a mass analysis on ions, a data processing unit for processing an output signal from the mass analyzer to determine the presence or absence of a dangerous substance, an operation panel for displaying the result of the determination, an alarm unit for generating an alarm based on the result of the determination, and a control unit for controlling the respective components of the apparatus based on operating conditions entered from the operation panel and specified for the respective components of the apparatus.

摘要翻译： 一种危险物质检测装置，包括用于容纳粘附有来自危险物质的样品的擦拭构件的烘箱，用于发射用于加热样品的红外线的光源，用于使在炉中蒸发的样品离子化的离子源，质量分析器 用于对离子执行质量分析的数据处理单元，用于处理来自质量分析器的输出信号以确定危险物质的存在与否;用于显示确定结果的操作面板，用于产生报警的报警单元 基于所述确定的结果，以及控制单元，用于基于从所述操作面板输入并为所述装置的各个部件指定的操作条件来控制所述装置的各个部件。

公开(公告)号：US20050061964A1

公开(公告)日：2005-03-24

申请号：US10780880

申请日：2004-02-19

申请人： Hisashi Nagano ,  Izumi Waki ,  Yasuaki Takada

发明人： Hisashi Nagano ,  Izumi Waki ,  Yasuaki Takada

IPC分类号： G01N27/62 ,  G01N1/22 ,  G01N27/68 ,  G01N31/00 ,  G01N31/22 ,  G01N33/00 ,  H01J49/04 ,  H01J49/10 ,  H01J49/26 ,  H01J49/42

CPC分类号： H01J49/0027 ,  H01J49/0077 ,  Y10T436/24

摘要： An apparatus for detecting chemical substances which is high in sensitivity and selectivity is provided. An organic acid or an organic acid salt is used to generate an organic acid gas from an organic acid gas generator 3 to be mixed with a sample gas for introduction into an ion source 4 for ionization, thereby obtaining a mass spectrum by a mass analysis region 5. A data processor 6 determines the detection or non-detection of a specific m/z of an organic acid adduct ion obtained by adding a molecule generated from the organic acid to a molecule with specific m/z generated from a target chemical substance to be detected based on the obtained mass spectrum. When there is an ion peak with the m/z of the organic acid adduct ion, the presence of the target chemical substance to be detected is determined, and an alarm is sounded. False detection can be prevented.

摘要翻译： 提供一种用于检测灵敏度和选择性高的化学物质的装置。 使用有机酸或有机酸盐从有机酸气体发生器3产生有机酸性气体，与用于引入离子源4的样品气体混合，从而通过质量分析区域获得质谱 数据处理器6确定通过将由有机酸产生的分子加入到由目标化学物质产生的特定m / z的分子而获得的有机酸加合物的特定m / z的检测或非检测， 基于获得的质谱检测。 当存在有机酸加合离子的m / z的离子峰时，确定要检测的目标化学物质的存在，并发出报警。 可以防止误检。

公开(公告)号：US06437327B2

公开(公告)日：2002-08-20

申请号：US09859508

申请日：2001-05-18

申请人： Yasuaki Takada ,  Minoru Sakairi ,  Atsumu Hirabayashi ,  Takayuki Nabeshima ,  Hideaki Koizumi

发明人： Yasuaki Takada ,  Minoru Sakairi ,  Atsumu Hirabayashi ,  Takayuki Nabeshima ,  Hideaki Koizumi

IPC分类号： H01J4910

CPC分类号： H01J49/165 ,  G01N30/7266 ,  H01J49/168

摘要： A mass spectrometer including a sprayer for spraying a sample solution, a needle electrode for ionizing the sample contained in the sample solution, an aperture for introducing the ions of the sample into a lower pressure region having a pressure lower than the pressure of a region in which the needle electrode is disposed, and a mass spectrometric apparatus for analyzing the ions introduced from the aperture. A direction of a spray caused by the sprayer is almost perpendicular to or at an angle with respect to a center axis of the aperture, and a tip of the needle is disposed facing to an electrode having the aperture.

摘要翻译： 一种质谱仪，包括用于喷射样品溶液的喷雾器，用于使包含在样品溶液中的样品电离的针状电极，用于将样品的离子引入低于区域压力的低压区域的孔 设置针状电极的质谱仪和用于分析从孔径引入的离子的质谱仪。 由喷雾器引起的喷雾方向几乎与孔的中心轴垂直或成一定角度，并且针的尖端面向具有孔的电极。

公开(公告)号：US6157030A

公开(公告)日：2000-12-05

申请号：US143398

申请日：1998-08-28

申请人： Minoru Sakairi ,  Tadao Mimura ,  Toshihiro Ishizuka ,  Masaru Tomioka ,  Yasuaki Takada ,  Takayuki Nabeshima

发明人： Minoru Sakairi ,  Tadao Mimura ,  Toshihiro Ishizuka ,  Masaru Tomioka ,  Yasuaki Takada ,  Takayuki Nabeshima

IPC分类号： H01J49/42

CPC分类号： H01J49/424

摘要： Disclosed is an ion trap mass spectrometer improved to obtain a high sensitivity without the lowering of resolution. By fitting a mesh electrode to an aperture (an ion sampling aperture or an ion extracting aperture) made in endcap electrodes constituting an ion trap mass analysis region, a radio frequency electric field in the mass analysis region is not disturbed even if the diameter of the aperture is set to a large value to heighten ion transmission efficiency. By fitting a shield electrode for preventing collision of ions with an insulated ring constituting an outer wall of the mass analysis region, charging up of the insulated ring is prevented to improve stability of detection signals. Furthermore, by arranging a shield member for shielding stray charged particles detouring through the circumference of the mass analysis region to approach an ion detector, generation of noises based on these stray charged particles is prevented.

摘要翻译： 公开了一种改进的离子阱质谱仪，可以在不降低分辨率的情况下获得高灵敏度。 通过将网状电极装配到构成离子阱质量分析区域的端盖电极中的孔（离子取样孔或离子提取孔）上，即使直径为 孔径被设定为大的值以提高离子传输效率。 通过安装用于防止离子与构成质量分析区域的外壁的绝缘环碰撞的屏蔽电极，防止了绝缘环的充电以提高检测信号的稳定性。 此外，通过设置用于屏蔽通过质量分析区域的圆周去除杂散带电粒子的屏蔽构件以接近离子检测器，防止了基于这些杂散带电粒子的噪声的产生。

公开(公告)号：US6114693A

公开(公告)日：2000-09-05

申请号：US299638

申请日：1999-04-27

申请人： Atsumu Hirabayashi ,  Yukiko Hirabayashi ,  Minoru Sakairi ,  Yasuaki Takada ,  Takayuki Nabeshima ,  Hideaki Koizumi

发明人： Atsumu Hirabayashi ,  Yukiko Hirabayashi ,  Minoru Sakairi ,  Yasuaki Takada ,  Takayuki Nabeshima ,  Hideaki Koizumi

IPC分类号： G01N27/62 ,  G01N27/447 ,  G01N30/72 ,  H01J49/04 ,  H01J49/10

CPC分类号： G01N30/7266 ,  H01J49/0468 ,  H01J49/167

摘要： A mass spectrometer comprising a passage through which a sample solution flows, the passage including a capillary having an open tip, the sample solution flowing through the capillary out of the open tip of the capillary, a gas passage which forms a gas flow around the open tip of the capillary, the gas flow spraying the sample solution flowing out of the open tip of the capillary, a first electrode which contacts the sample solution flowing in the passage and applies an electric potential to the sample solution flowing in the passage, a second electrode disposed around the capillary near the open tip of the capillary, the second electrode being downstream from the first electrode with respect to a direction in which the sample solution flows in the passage, there being no gap extending downstream from the open tip of the capillary to the second electrode in a direction in which the sample solution flows out of the open tip of the capillary, the second electrode being electrically isolated from the sample solution flowing in the capillary and applying an electric field to the sample solution flowing in the capillary, and an analyzer which analyzes a mass of gaseous ions formed from the sample solution sprayed by the gas flow.

摘要翻译： 一种质谱仪，包括样品溶液流过的通道，所述通道包括具有开口尖端的毛细管，所述样品溶液从毛细管的开口尖端流过毛细管，气体通道围绕开口形成气流 毛细管的尖端，气流喷射从毛细管的开口尖端流出的样品溶液，第一电极，其接触在通道中流动的样品溶液，并向在通道中流动的样品溶液施加电位，第二电极 设置在毛细管附近的毛细管周围的电极，第二电极相对于样品溶液在通道中流动的方向从第一电极下游，在毛细管的开口尖端的下游没有间隙 在样品溶液从毛细管的开口尖端流出的方向到第二电极，第二电极是电隔离的 从在毛细管中流动的样品溶液流出并向在毛细管中流动的样品溶液施加电场，以及分析器，其分析由气流喷射的样品溶液形成的气态离子的质量。

公开(公告)号：US6075243A

公开(公告)日：2000-06-13

申请号：US827184

申请日：1997-03-27

申请人： Takayuki Nabeshima ,  Minoru Sakairi ,  Yasuaki Takada ,  Yukiko Hirabayashi ,  Hideaki Koizumi

发明人： Takayuki Nabeshima ,  Minoru Sakairi ,  Yasuaki Takada ,  Yukiko Hirabayashi ,  Hideaki Koizumi

IPC分类号： G01N27/62 ,  G01N30/72 ,  H01J49/02 ,  H01J49/26 ,  H01J49/42 ,  B01D59/44 ,  H01J49/00

CPC分类号： H01J49/424 ,  H01J49/044 ,  H01J49/4255

摘要： A mass spectrometer in which, in order to reduce noise due to other particles (large charge droplets, neutral particles, photons, or the like), the orbit of ions and the orbit of other particles are separated from each other in the inside of a mass analysis region so as to make it possible to prevent the other particles from reaching an ion detection region without using any deflector.

摘要翻译： 一种质谱仪，其中为了减少由于其它颗粒（大电荷液滴，中性粒子，光子等）引起的噪声，离子的轨道和其它颗粒的轨道在一个 质量分析区域，使得可以防止其他颗粒在不使用任何偏转器的情况下到达离子检测区域。

公开(公告)号：US6060706A

公开(公告)日：2000-05-09

申请号：US23461

申请日：1998-02-13

申请人： Takayuki Nabeshima ,  Yasuaki Takada ,  Minoru Sakairi

发明人： Takayuki Nabeshima ,  Yasuaki Takada ,  Minoru Sakairi

IPC分类号： H01J49/06 ,  H01J49/42 ,  B01D59/44 ,  H01J49/00

CPC分类号： H01J49/424 ,  H01J49/061

摘要： In an analytical apparatus, an ion trap mass spectrometer and a detector for detecting ions separated in the mass spectrometer are installed in different chambers. Ions generated from an ion source and passing through two differential pumping chambers into a third chamber containing the detector are deflected from their initial trajectory into the mass spectrometer in a fourth chamber for separation. In a first embodiment, the separated ions are returned along the same path into the detector in the third chamber. According to a second embodiment, the detector is located along the path of ion travel beyond the mass spectrometer, and the separated ions pass through a second orifice in the mass spectrometer and into the detector in the third chamber.

摘要翻译： 在分析装置中，离子阱质谱仪和用于检测在质谱仪中分离的离子的检测器安装在不同的室中。 从离子源产生并且通过两个差分泵送室的包含检测器的第三室中的离子从第一个进入第四室的初始轨迹偏转到质谱仪中进行分离。 在第一实施例中，分离的离子沿相同的路径返回到第三室中的检测器中。 根据第二实施例，检测器沿着离子行进的路径位于质谱仪之外，并且分离的离子通过质谱仪中的第二孔并进入第三室中的检测器。