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    • 49. 发明申请
    • MASS SPECTROMETER
    • 质谱仪
    • US20090020695A1
    • 2009-01-22
    • US12173328
    • 2008-07-15
    • Hiroyuki SatakeYuichiro HashimotoYasuaki Takada
    • Hiroyuki SatakeYuichiro HashimotoYasuaki Takada
    • B01D59/44
    • H01J49/004H01J49/422H01J49/4255H01J49/427
    • A mass spectrometer includes a linear multipole electrode, an auxiliary electrode that applies a DC potential on the center axis of the linear multipole electrode, and a DC power supply that supplies a DC power to the auxiliary electrode. The DC potential slope formed on the center axis of the multipole electrode is changed according to the measuring condition. The ejection time of ions can be adjusted optimally by adjusting the potential slope so as to satisfy the measuring condition. If the ejection time of ions is shortened, confusion of different ion information items that might otherwise occur on a spectrum can be avoided. If the ejection time of ions is lengthened, detection limit exceeding can be avoided and ions can be measured efficiently, thereby highly efficient ion measurements are always assured.
    • 质谱仪包括线性多极电极,在线性多极电极的中心轴上施加直流电位的辅助电极和向辅助电极提供直流电力的直流电源。 根据测量条件改变在多极电极的中心轴上形成的直流电位斜率。 通过调整电位斜率以满足测量条件,可以最佳地调节离子的喷射时间。 如果离子的喷射时间缩短,则可以避免在光谱上可能发生的不同离子信息项的混淆。 如果离子的喷射时间延长,则可以避免超过检测极限,有效测量离子,从而确保高效的离子测量。
    • 50. 发明授权
    • Mass spectrometer
    • 质谱仪
    • US08044349B2
    • 2011-10-25
    • US12173328
    • 2008-07-15
    • Hiroyuki SatakeYuichiro HashimotoYasuaki Takada
    • Hiroyuki SatakeYuichiro HashimotoYasuaki Takada
    • H01J49/00
    • H01J49/004H01J49/422H01J49/4255H01J49/427
    • A mass spectrometer includes a linear multipole electrode, an auxiliary electrode that applies a DC potential on the center axis of the linear multipole electrode, and a DC power supply that supplies a DC power to the auxiliary electrode. The DC potential slope formed on the center axis of the multipole electrode is changed according to the measuring condition. The ejection time of ions can be adjusted optimally by adjusting the potential slope so as to satisfy the measuring condition. If the ejection time of ions is shortened, confusion of different ion information items that might otherwise occur on a spectrum can be avoided. If the ejection time of ions is lengthened, detection limit exceeding can be avoided and ions can be measured efficiently, thereby highly efficient ion measurements are always assured.
    • 质谱仪包括线性多极电极,在线性多极电极的中心轴上施加直流电位的辅助电极和向辅助电极提供直流电力的直流电源。 根据测量条件改变在多极电极的中心轴上形成的直流电位斜率。 通过调整电位斜率以满足测量条件,可以最佳地调节离子的喷射时间。 如果离子的喷射时间缩短,则可以避免在光谱上可能发生的不同离子信息项的混淆。 如果离子的喷射时间延长,则可以避免超过检测极限,有效测量离子,从而确保高效的离子测量。