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    • 8. 发明授权
    • Apparatus for detecting chemical substances and method therefor
    • 用于检测化学物质的装置及其方法
    • US07015464B2
    • 2006-03-21
    • US10780880
    • 2004-02-19
    • Hisashi NaganoIzumi WakiYasuaki Takada
    • Hisashi NaganoIzumi WakiYasuaki Takada
    • H01J44/04G01N24/00
    • H01J49/0027H01J49/0077Y10T436/24
    • 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 to be mixed with a sample gas for introduction into an ion source for ionization, thereby obtaining a mass spectrum by a mass analysis region. A data processor 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.
    • 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性气体发生器产生有机酸气体,并与用于引入离子源的样品气体混合,从而通过质量分析区域获得质谱。 数据处理器确定通过将由有机酸产生的分子加入到由待检测的目标化学物质产生的特定m / z的分子获得的有机酸加合物的特定m / z的检测或非检测基础上 在获得的质谱上。 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。
    • 9. 发明申请
    • Mass spectrometer
    • 质谱仪
    • US20050067565A1
    • 2005-03-31
    • US10873107
    • 2004-06-23
    • Yasuaki TakadaHisashi Nagano
    • Yasuaki TakadaHisashi Nagano
    • G01N27/62H01J49/42
    • H01J49/424H01J49/0063H01J49/428
    • A mass spectrometer capable of analysis at high speed and high accuracy comprising a device for applying a high frequency signal not containing resonance frequencies for plural precursor ions but containing resonance frequencies of other ions, and having different amplitudes on every frequencies to an electrode constituting the mass spectrometer thereby controlling the selection for the plural precursor ions, and a device for applying a high frequency signal having amplitudes set individually on every resonance frequencies of the plural precursor ions and superimposed with the resonance frequencies for the plural precursor ions to the electrode constituting the mass spectrometer thereby controlling the dissociation of the plural precursor ions, and judging the presence or absence of the aimed chemical substance based on the mass spectra of the obtained by dissociating the plural fragment ions.
    • 能够以高速,高精度进行分析的质谱仪,其特征在于,包括用于施加不包含多个前体离子的共振频率但含有其他离子的共振频率的高频信号的装置,并且在构成所述质量的电极的每个频率上具有不同的振幅 光谱仪,从而控制多个前体离子的选择,以及用于施加具有单独设置在多个前体离子的每个共振频率上的振幅的高频信号并与多个前体离子的共振频率叠加到构成质量的电极的装置 从而控制多个前体离子的解离,并且基于通过解离多个片段离子获得的质谱来判断目标化学物质的存在或不存在。
    • 10. 发明授权
    • Method and apparatus for analyzing vapors generated from explosives
    • 分析爆炸物产生的蒸气的方法和装置
    • US06770877B2
    • 2004-08-03
    • US10457426
    • 2003-06-10
    • Toshihiko OhtaKenji KusumotoYasuaki TakadaHisashi Nagano
    • Toshihiko OhtaKenji KusumotoYasuaki TakadaHisashi Nagano
    • H01J4910
    • H01J49/145
    • A method and apparatus for analyzing vapors generated from explosives in which vapors containing nitrogen monoxide and/or nitrogen dioxide are generated by decomposing explosives by increasing the temperature of the explosives, primary ions and neutral molecules are generated from air. The generated primary ions and the nitrogen monoxide and/or nitrogen dioxide contained in the generated vapors are allowed to react with each other in an area inhibited or prevented from being penetrated by the generated neutral molecules, and the nitrogen monoxide and/or nitrogen dioxide contained in the generated vapors is ionized. The ionized nitrogen monoxide and/or nitrogen dioxide is subjected to mass spectrometry, and an amount of the nitrogen monoxide and/or nitrogen dioxide contained in the generated vapors by decomposing the explosives is determined.
    • 用于分析由爆炸物产生的蒸汽的方法和装置,其中通过从空气中产生爆炸物,初级离子和中性分子的温度来分解包含一氧化氮和/或二氧化氮的蒸气而产生的蒸气。 产生的初级离子和产生的蒸气中含有的一氧化氮和/或二氧化氮在被产生的中性分子渗透的区域中彼此反应,并且含有一氧化氮和/或二氧化氮 在产生的蒸气中电离。 对离子化的一氧化氮和/或二氧化氮进行质谱分析,并确定通过分解爆炸物而产生的蒸汽中所含的一氧化氮和/或二氧化氮的量。