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公开(公告)号：US06838664B2
公开(公告)日：2005-01-04
申请号：US10651997
申请日：2003-09-02
CPC分类号： H01J49/168 , H01J49/0422
摘要： An ion source using a corona discharge for ionizing a sample at high efficient is provided. In the corona discharge generated at a tip end of a needle electrode by application of high voltage thereto, the direction in which the sample is introduced to the region of corona discharge and the direction in which ions are drawn out of the corona discharge region are substantially opposed to each other to improve the efficiency of ionization and to maintain a stable discharge for a long period of time.
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公开(公告)号：US06686592B1
公开(公告)日：2004-02-03
申请号：US09663796
申请日：2000-09-18
IPC分类号： H01T1904
CPC分类号： H01J49/168 , H01J49/0422
摘要： An ion source using a corona discharge for ionizing a sample at high efficient is provided. In the corona discharge generated at a tip end of a needle electrode by application of high voltage thereto, the direction in which the sample is introduced to the region of corona discharge and the direction in which ions are drawn out of the corona discharge region are substantially opposed to each other to improve the efficiency of ionization and to maintain a stable discharge for a long period of time.
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公开(公告)号：US06840120B2
公开(公告)日：2005-01-11
申请号：US10443042
申请日：2003-05-22
CPC分类号： H01J49/0422 , G01N1/22 , G01N2001/024
摘要： An explosive detection system includes an X-ray inspection apparatus, a mover for moving an object to be inspected to the X-ray inspection apparatus, a sample introduction probe for sampling a gas sample from the object to be inspected, a pipe for introducing the sampled gas into a corona discharge region and for subjecting the sampled gas to negative corona discharge to ionize the sampled gas and to generate negative ions. A mass spectrometer is provided to analyze the mass of the negative ions of the sampled gas and to provide results thereof. Inspection by the X-ray inspection apparatus is performed in relation to sampling of the gas sample, and explosive detection system inspects whether or not an explosive is present in the object to be inspected, from the analysis results of the sampled gas.
摘要翻译： 爆炸检测系统包括：X射线检查装置，用于将待检查物体移动到X射线检查装置的移动器;用于从待检查对象取样气体样本的样品引入探针; 取样气体进入电晕放电区域，并使采样气体进行负电晕放电，使取样气体离子化并产生负离子。 提供质谱仪来分析取样气体的负离子的质量并提供其结果。 根据采样气体的分析结果，对气体样品的取样进行X射线检查装置的检查，爆炸检测系统检查是否存在待检查对象物中的爆炸物。
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公开(公告)号：US06295860B1
公开(公告)日：2001-10-02
申请号：US09348565
申请日：1999-07-07
IPC分类号： G01N100
CPC分类号： H01J49/0422 , G01N1/22 , G01N2001/024
摘要： An explosive detection system in which vapor leaking from luggage is sampled by a sampling probe, negative corona discharge is used to ionize the vapor, and a mass spectrometer is used to detect the ionized vapor, thereby judging whether an explosive is present or not.
摘要翻译： 一种爆炸检测系统，其中通过采样探针对从行李箱泄漏的蒸气进行采样，使用负电晕放电来电离蒸气，并使用质谱仪检测电离蒸汽，从而判断是否存在爆炸物。
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公开(公告)号：US06571649B2
公开(公告)日：2003-06-03
申请号：US09884089
申请日：2001-06-20
IPC分类号： G01N100
CPC分类号： H01J49/0422 , G01N1/22 , G01N2001/024
摘要： A sample introduction probe for introducing a gas sample to a mass spectrometer, having an inner pipe for conducting the sample to be analyzed, and an outer pipe installed outside of the inner pipe. An opening is installed at one end of the inner pipe for enabling entry of the sample into the inner pipe. A pump is installed on a side of the one end of the inner pipe, and a probe tip heater is provided for heating the one end of the inner pipe, a heater for heating the inner pipe.
摘要翻译： 用于将气体样品引入质谱仪的样品引入探针，其具有用于引导要分析的样品的内管和安装在内管外部的外管。 在内管的一端安装开口，以使样品进入内管。 泵安装在内管的一端的一侧，并且设置有用于加热内管的一端的探针末端加热器，用于加热内管的加热器。
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公开(公告)号：US06580067B1
公开(公告)日：2003-06-17
申请号：US09712132
申请日：2000-11-15
申请人： Masuyoshi Yamada , Yuichiro Hashimoto , Minoru Sakairi , Yasuaki Takada , Masami Sakamoto , Tomoyuki Tobita
发明人： Masuyoshi Yamada , Yuichiro Hashimoto , Minoru Sakairi , Yasuaki Takada , Masami Sakamoto , Tomoyuki Tobita
IPC分类号： H01J4900
CPC分类号： H01J49/0009 , F23G5/50 , G01N33/0049 , H01J49/0422
摘要： The present invention is to provide a monitoring device making it possible to measure the concentration of a target trace gas which has an ionization efficiency changed by the affect of impurities and which is absorbed on a pretreatment portion or piping, at a high accuracy and at real time, by adding an internal standard having a known concentration to the target trace gas. The concentration of the target trace gas is measured while an internal standard having substantially the same properties (such as ionization efficiency change and vapor pressure) as the target trace gas is added. The ion strengths of the target trace gas and the internal standard are compared to calibrate the concentration of the target trace gas. According to the present invention, the concentration of the target trace gas in gas containing impurities can be online measured at a real time and at high accuracy while being continuously calibrated.
摘要翻译： 本发明提供一种监测装置，使得可以以高精度和实际地测量具有由杂质影响而改变并且被吸收在预处理部分或管道上的电离效率的目标痕量气体的浓度 通过向目标痕量气体添加具有已知浓度的内标，测定目标痕量气体的浓度，同时测定作为目标痕量气体具有基本相同性质（如电离效率变化和蒸气压）的内标 被添加。 将目标痕量气体和内标的离子强度进行比较，校正目标痕量气体的浓度。根据本发明，可以在线测量含有杂质的气体中的痕量气体的浓度， 在高精度的同时连续校准。
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公开(公告)号：US06639215B2
公开(公告)日：2003-10-28
申请号：US10053567
申请日：2002-01-24
IPC分类号： B01D5944
CPC分类号： H01J49/168 , H01J49/0445
摘要： To provide a mass spectrometer having a high sensitivity to dioxins. In the mass spectrometer including: a sample supply tube for supplying a sample solution containing a sample to be measured; a nebulizer for nebulizing the sample solution supplied from the sample supply tube; an ion source having a needle electrode for ionizing the sample nebulized and vaporized in the nebulizer; and a mass analyzer for analyzing ions formed in the ion source, and a gas of a flow rate corresponding to the flow rate of the sample solution is mixed to the vaporized sample, and a moving direction of the sample is made opposite to a moving direction of ions at a tip of the needle electrode.
摘要翻译： 提供对二恶英具有高度敏感性的质谱仪。 在质谱仪中，包括：供给含有待测样品的样品溶液的样品供给管; 用于将从样品供应管提供的样品溶液雾化的雾化器; 离子源，其具有针状电极，用于将在雾化器中雾化和蒸发的样品电离; 以及用于分析在离子源中形成的离子的质量分析器，将与样品溶液的流量对应的流量的气体混合到蒸发的样品中，使样品的移动方向与移动方向相反 的针电极尖端的离子。
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公开(公告)号：US06723286B2
公开(公告)日：2004-04-20
申请号：US09987094
申请日：2001-11-13
申请人： Minoru Sakairi , Yoshiaki Kato , Mamoru Mizumoto , Yuichiro Hashimoto , Jiro Tokita , Masao Suga
发明人： Minoru Sakairi , Yoshiaki Kato , Mamoru Mizumoto , Yuichiro Hashimoto , Jiro Tokita , Masao Suga
IPC分类号： G01N3000
CPC分类号： G01N1/2258 , G01N33/0014 , G01N33/0047 , G01N33/0049 , H01J49/00 , Y10T436/19 , Y10T436/196666 , Y10T436/24
摘要： There was previously no monitoring method and monitoring apparatus which could measure dioxins at ppt levels and dioxin precursors at ppb levels with high sensitivity. According to this invention, organic and inorganic compounds containing highly electronegative elements are selectively ionized by atmospheric pressure chemical ionization, the ions produced are detected by a mass spectrometer, and their amount is measured. As a result, interfering substances such as nitrogen, air, hydrocarbons and carbon dioxide which are the main components of flue gas are eliminated, and dioxins or organochlorine compounds such as dioxin precursors can be selectively monitored.
摘要翻译： 以前没有监测方法和监测装置可以以高灵敏度测量ppp水平的二恶英和ppb水平的二恶英前体。根据本发明，含有高电荷性元素的有机和无机化合物通过大气压化学电离选择性离子化，离子 通过质谱仪检测产生的量，测量其量。结果，消除了作为烟道气主要成分的氮，空气，烃和二氧化碳等干扰物质，二恶英或有机氯化合物如二恶英前体 可以选择性地监测。
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公开(公告)号：US08368013B2
公开(公告)日：2013-02-05
申请号：US13084930
申请日：2011-04-12
申请人： Masako Ishimaru , Yuichiro Hashimoto , Hideki Hasegawa , Masuyoshi Yamada , Masuyuki Sugiyama , Hidetoshi Morokuma
发明人： Masako Ishimaru , Yuichiro Hashimoto , Hideki Hasegawa , Masuyoshi Yamada , Masuyuki Sugiyama , Hidetoshi Morokuma
CPC分类号： H01J49/145
摘要： An analyzer performs dielectric barrier discharge and ionization of a sample by a reaction between the sample and excited molecules or ions generated by the dielectric barrier discharge at a pressure lower than an atmospheric pressure.
摘要翻译： 分析仪通过在低于大气压的压力下通过介电阻挡放电产生的样品和激发的分子或离子之间的反应来进行介电阻挡放电和样品的离子化。
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公开(公告)号：US20120326022A1
公开(公告)日：2012-12-27
申请号：US13527627
申请日：2012-06-20
申请人： Shun KUMANO , Masuyuki Sugiyama , Yuichiro Hashimoto , Hideki Hasegawa , Masuyoshi Yamada , Hidetoshi Morokuma , Shuhei Hashiba
发明人： Shun KUMANO , Masuyuki Sugiyama , Yuichiro Hashimoto , Hideki Hasegawa , Masuyoshi Yamada , Hidetoshi Morokuma , Shuhei Hashiba
IPC分类号： H01J49/04
CPC分类号： H01J49/0409 , H01J49/0495
摘要： A mass spectrometer including a sample attaching member of attaching a sample, an ionizing chamber including an introductory port of the sample attaching member and an ionization source of generating a sample ion, a vacuumed chamber having a mass analyzer of analyzing the sample ion, and an opening/closing mechanism provided between the ionizing chamber and the vacuumed chamber, in which the opening/closing mechanism is controlled from a closed state to an open state after introducing the sample attaching member into the ionizing chamber to thereby enable to perform ionization with inconsiderable fragmentation at a high sensitivity with a high throughput
摘要翻译： 一种质谱仪，包括附着样品的样品附着构件，包括样品附着构件的入口的电离室和产生样品离子的离子源，具有分析样品离子的质量分析器的真空室，以及 设置在离子化室和真空室之间的开/关机构，其中将样品附着构件引入电离室之后，将开/关机构从关闭状态控制到打开状态，从而能够以不可分割的碎片进行电离 灵敏度高，吞吐量高
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