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    • 4. 发明申请
    • Mass Spectrometer
    • 质谱仪
    • US20100072360A1
    • 2010-03-25
    • US12593006
    • 2008-03-26
    • Martin GreenJason Lee WildgooseJeffery Mark Brown
    • Martin GreenJason Lee WildgooseJeffery Mark Brown
    • H01J49/26H01J49/04
    • H01J49/0481H01J49/0072H01J49/065H01J49/40Y10T436/24
    • A mass spectrometer is disclosed comprising an Electron Transfer Dissociation cell (1). Positive analyte ions are fragmented into fragment ions upon colliding with singly charged negative reagent ions with the cell (1). The cell comprises a plurality of ring electrodes (1) which form a spherical trapping volume. Ions experience negligible RF heating over the majority. of the trapping volume which enables the kinetic energy of the analyte and reagent ions to be reduced to just above thermal temperatures. An Electron Transfer Dissociation cell (1) having an enhanced sensitivity is thereby provided. Fragment ions created within the cell (1) may be cooled and may be transmitted onwardly to an orthogonal acceleration Time of Flight mass analyser enabling a significant improvement in the resolution of the mass analyser to be obtained.
    • 公开了包含电子转移离解电池(1)的质谱仪。 当与单体电荷的负试剂离子碰撞时,阳性分析物离子被碎裂成碎片离子(1)。 电池包括形成球形捕获体积的多个环形电极(1)。 在多数情况下,离子经验可以忽略不计。 的捕获体积,其使分析物和试剂离子的动能降低到恰好高于热温度。 由此提供了具有增强的灵敏度的电子转移解离单元(1)。 在细胞(1)内产生的片段离子可以被冷却并且可以向内传播到正交加速时间飞行质量分析仪,能够显着提高质量分析仪的分辨率。
    • 10. 发明授权
    • Mass spectrometer
    • 质谱仪
    • US08164052B2
    • 2012-04-24
    • US12593006
    • 2008-03-26
    • Martin R. GreenJason Lee WildgooseJeffery Mark Brown
    • Martin R. GreenJason Lee WildgooseJeffery Mark Brown
    • H01J49/26H01J49/40
    • H01J49/0481H01J49/0072H01J49/065H01J49/40Y10T436/24
    • A mass spectrometer is disclosed comprising an Electron Transfer Dissociation cell (1). Positive analyte ions are fragmented into fragment ions upon colliding with singly charged negative reagent ions with the cell (1). The cell comprises a plurality of ring electrodes (1) which form a spherical trapping volume. Ions experience negligible RF heating over the majority, of the trapping volume which enables the kinetic energy of the analyte and reagent ions to be reduced to just above thermal temperatures. An Electron Transfer Dissociation cell (1) having an enhanced sensitivity is thereby provided. Fragment ions created within the cell (1) may be cooled and may be transmitted onwardly to an orthogonal acceleration Time of Flight mass analyser enabling a significant improvement in the resolution of the mass analyser to be obtained.
    • 公开了包含电子转移离解电池(1)的质谱仪。 当与单体电荷的负试剂离子碰撞时,阳性分析物离子被碎裂成碎片离子(1)。 电池包括形成球形捕获体积的多个环形电极(1)。 离子经验可忽略大部分的RF加热,捕集体积使分析物和试剂离子的动能降低到高于热温度。 由此提供了具有增强的灵敏度的电子转移解离单元(1)。 在细胞(1)内产生的片段离子可以被冷却并且可以向内传播到正交加速时间飞行质量分析仪,能够显着提高质量分析仪的分辨率。