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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：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：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：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：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：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：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：US06423965B1
公开(公告)日：2002-07-23
申请号：US09378767
申请日：1999-08-23
IPC分类号： H01J4900
CPC分类号： H01J49/04
摘要： Plasma ion source mass spectrometers or liquid chromatograph/mass spectrometers are provided: wherein photon noises and matrix molecule ions produced by the ion source are decreased, the decrease of the quantity of signal is suppressed, and the apparatus maintenance is improved. The photon noises are decreased with a shielding plate and a 90 degrees deflector. The maintainability in cleaning is improved by a combination of a leading electrode, the shielding plate having a small hole, and a gate valve. The decrease in the quantity of signal is suppressed with the leading electrode, and a double cylindrical type static lens. Position adjustment of the leading electrode is performed with a flat plate having plural holes. Using an ion trap mass analyzer, matrix molecule ions are eliminated by applying a resonance voltage between its end cap electrodes. Decrease in the quantity of signals, which has been a problem, can be prevented, and a high transmission can be realized with a preferable reproducibility against disturbance of an electric field caused by ion lens and the like. A detectable limit of atomic ions of the sample can be improved by eliminating the matrix molecule ions.
摘要翻译： 提供了等离子体离子源质谱仪或液相色谱仪/质谱仪：其中由离子源产生的光子噪声和基质分子离子减少，抑制了信号量的减少，从而改善了设备的维护。 光子噪声随屏蔽板和90度偏转器而减小。 通过前导电极，具有小孔的屏蔽板和闸阀的组合来提高清洁的可维护性。 用前导电极和双圆柱形静电透镜抑制信号量的减少。 引导电极的位置调整用具有多个孔的平板进行。 使用离子阱质量分析仪，通过在其端盖电极之间施加谐振电压来消除基质分子离子。 可以防止已经存在问题的信号量的减少，并且以离子透镜等引起的电场干扰的优选再现性可以实现高透射率。 可以通过消除基质分子离子来改善样品的原子离子的可检测极限。
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公开(公告)号：US06194716B1
公开(公告)日：2001-02-27
申请号：US09143399
申请日：1998-08-28
IPC分类号： B01D5944
CPC分类号： H01J49/424 , H01J49/0009 , H01J49/428
摘要： A method for performing a mass calibration under an application of a desired ion peak position of mass spectrum attained by a mass scanning of ions of substance having a known value of m/z and the known value of m/z is added with a step for ejecting an amount of unnecessary ions not contributing to the aforesaid mass calibration accumulated in the aforesaid ion trap type mass analysis region prior to the aforesaid mass scanning operation. An accumulation of a large amount of unnecessary ions in the ion trap type mass analysis region is restricted, a disturbance of electric field in the ion trap mass analysis region generated under an influence of a spatial charge caused by accumulation of the unnecessary ions can be prevented and the aforesaid mass calibration can be performed in an easy and accurate manner.
摘要翻译： 在通过具有已知m / z值的物质的离子的质量扫描和已知的m / z值获得的质谱所需离子峰位置的施加下进行质量校准的方法添加了用于 在上述质量扫描操作之前，排出在上述离子阱型质量分析区域中累积的对上述质量校准无贡献的不需要的离子的量。 离子阱型质量分析区域中的大量不需要的离子的积聚受到限制，可以防止在由不需要的离子的积聚引起的空间电荷的影响下产生的离子阱质量分析区域中的电场的扰动 并且可以容易且准确地进行上述质量校准。
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公开(公告)号：US08560249B2
公开(公告)日：2013-10-15
申请号：US12903263
申请日：2010-10-13
IPC分类号： G01N31/00
CPC分类号： H01J49/0036 , G01N33/227 , H01J49/004
摘要： A method of quickly detecting a handmade explosive in a bottle with a low erroneous alarm frequency is provided. A sample gas generated from a bottle placed on a bottle placement space is sucked-in, and ions of the sample gas are generated by an ion source and subjected to mass analysis. The presence/absence of a mass spectrum derived from the handmade explosive is determined from an obtained mass spectrum, and the result thereof is displayed on a monitor, thereby quickly detecting the handmade explosive in the bottle or the handmade explosive adhering to the surface of the bottle at a low erroneous alarm frequency.
摘要翻译： 提供了一种在低错误报警频率的瓶子中快速检测手工炸药的方法。 将从放置在瓶放置空间的瓶子产生的样品气体吸入，并且通过离子源产生样品气体的离子并进行质量分析。 从所获得的质谱确定来自手工炸药的质谱的存在/不存在，并将其结果显示在监视器上，从而快速检测瓶中的手工炸药或附着在表面上的手工炸药 瓶子在低错误报警频率。
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