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    • 76. 发明授权
    • Mass spectrometer and mass spectrometric analysis method
    • 质谱仪和质谱分析方法
    • US07956322B2
    • 2011-06-07
    • US12354245
    • 2009-01-15
    • Masuyuki SugiyamaYuichiro HashimotoHideki HasegawaYasuaki Takada
    • Masuyuki SugiyamaYuichiro HashimotoHideki HasegawaYasuaki Takada
    • B01D59/44H01J49/00
    • H01J49/0045
    • An MS/MS spectrometric analysis method obtains throughput and mass resolving power of precursor ions. In a mass spectrometer, ions, which are introduced and accumulated in an ion trap unit, are resonance-extracted mass-selectively. A profile of precursor ions at the m/z axis of the ion trap and a profile at the mass analyzer portion, which performs mass analysis of the ions extracted from a collision induced dissociation portion, is obtained by performing a measurement when the injection energy to the collision induced dissociation portion is low, and when the injection energy to the collision induced dissociation portion is high. The profile at the m/z axis of the ion trap of the obtained two-dimensional spectrum is substituted with the profile at the m/z axis of the mass analyzer portion. In this way, the m/z of both the precursor ions and the fragment ions can be determined with high mass resolving power.
    • MS / MS光谱分析方法获得前体离子的通量和质量分辨能力。 在质谱仪中,离子阱单元中引入和积聚的离子是质量选择性共振提取的。 在离子阱的m / z轴处的前体离子的轮廓和质量分析器部分的轮廓,其进行从碰撞诱导的解离部分提取的离子的质量分析,通过在将注入能量 碰撞诱导的解离部分低,并且当碰撞诱导解离部分的注入能量高时。 所获得的二维光谱的离子阱的m / z轴的轮廓被质量分析器部的m / z轴的轮廓所取代。 以这种方式,可以以高质量分辨能力确定前体离子和碎片离子两者的m / z。
    • 77. 发明授权
    • Analytical system and method utilizing the dependence of signal intensity on matrix component concentration
    • 利用信号强度对基质成分浓度的依赖性的分析系统和方法
    • US07829846B2
    • 2010-11-09
    • US12037148
    • 2008-02-26
    • Yuichiro HashimotoHideki HasegawaMasuyuki SugiyamaYasuaki Takada
    • Yuichiro HashimotoHideki HasegawaMasuyuki SugiyamaYasuaki Takada
    • H01J49/40G06F19/00G01N31/00
    • H01J49/0036
    • The present invention achieves accurate quantitative determination without reducing measurement throughput and also without having to add a multi-component reference standard. An analytical instrument of the present invention for determining the concentration of a target compound contained in a target sample includes: a means for ionizing a mixture having a specific compound added to the target sample; a means for performing mass analysis on resulting ions; and a database that stores dependence of signal intensity on the concentration of a specific matrix component for each of the target compound and the addition compound, wherein the database is used to calibrate the concentration of the target compound from a signal derived from the target compound and a signal derived from the addition compound, each signal obtained by the mass analysis means. The present invention achieves a multi-component analyzer using low-cost, high-throughput mass analysis, as compared to conventional technique.
    • 本发明可以在不降低测量吞吐量的情况下实现准确的定量测定,而且不必添加多组分参考标准。 本发明的用于测定目标样品中包含的目标化合物的浓度的分析仪包括:将具有特定化合物的混合物电离于目标样品的装置; 对所得离子进行质量分析的手段; 以及数据库,其存储信号强度对于每种目标化合物和加成化合物的特定基质成分的浓度的依赖性,其中所述数据库用于从源自目标化合物的信号校准目标化合物的浓度,以及 来自加成化合物的信号,通过质量分析装置得到的各信号。 与现有技术相比,本发明实现了使用低成本,高吞吐量质量分析的多分量分析仪。