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    • 2. 发明申请
    • MASS SPECTROMETER
    • 质谱仪
    • WO2006054101A3
    • 2007-01-18
    • PCT/GB2005004457
    • 2005-11-18
    • MICROMASS LTDBATEMAN ROBERT HAROLDGILES KEVINPRINGLE STEVEN DEREKWILDGOOSE JASON LEE
    • BATEMAN ROBERT HAROLDGILES KEVINPRINGLE STEVEN DEREKWILDGOOSE JASON LEE
    • H01J49/42H01J49/16
    • H01J49/4215H01J49/428
    • A mass spectrometer is disclosed comprising a quadrupole rod set ion guide or mass filter device (6). A broadband frequency signal (10) having one or more notches (11a, 11b, 11c) is applied to the rods of the quadrupole rod set (6). The notched broadband frequency signal (10) causes undesired ions to be resonantly ejected from the ion guide (6). The notched broadband frequency signal (10) has frequency components missing which correspond with the resonance frequency of ions which are desired to be onwardly transmitted. The ion guide or mass filter device (6) enables a plurality of desired ions having different mass to charge ratios to be simultaneously transmitted by the ion guide or mass filter device (6) whilst other ions are resonantly ejected from the ion guide or mass filter device (6).
    • 公开了一种质谱仪,其包括四极棒离子导向器或质量过滤装置(6)。 具有一个或多个凹口(11a,11b,11c)的宽频率信号(10)被施加到四极杆组(6)的杆上。 缺口宽带频率信号(10)使离子引导(6)共振地排出不想要的离子。 缺口宽带频率信号(10)具有与期望向前发射的离子的谐振频率相对应的频率分量。 离子导向器或质量过滤器装置(6)使得能够通过离子导向器或质量过滤器装置(6)同时传输具有不同质荷比的多个所需离子,而其它离子从离子导向器或质量过滤器 装置(6)。
    • 6. 发明申请
    • MASS SPECTROMETER
    • 质谱仪
    • WO2007148115A3
    • 2008-10-02
    • PCT/GB2007002346
    • 2007-06-25
    • MICROMASS LTDBATEMAN ROBERT HAROLDGILES KEVINPRINGLE STEVEN DEREKWILDGOOSE JASON LEE
    • BATEMAN ROBERT HAROLDGILES KEVINPRINGLE STEVEN DEREKWILDGOOSE JASON LEE
    • H01J49/00
    • H01J49/429G01N27/622H01J49/0031H01J49/004
    • A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator (6) arranged upstream of a collision or fragmentation cell (8). Ions are separated according to their ion mobility within the ion mobility spectrometer or separator (6). The kinetic energy of the ions exiting the ion mobility spectrometer or separator (6) is increased substantially linearly with time in order to optimise the fragmentation energy of ions as they enter the collision or fragmentation cell (8). During the time that the potential of the ion mobility spectrometer or separator (6) is being varied, the potential of ion-optical components upstream of the ion mobility spectrometer or separator (6) such as an ion source (1), ion guide (2), quadrupole mass filter (3), optional second collision or fragmentation cell (4) and an ion trapping device (5) are kept constant.
    • 公开了一种质谱仪,其包括设置在碰撞或破碎电池(8)上游的离子迁移谱仪或分离器(6)。 根据离子迁移谱仪或分离器(6)内的离子迁移率分离离子。 离子离子迁移谱仪或分离器(6)离子的动能随着时间的推移基本线性地增加,以优化离子进入碰撞或破碎电池(8)时的碎裂能。 在离子迁移谱仪或分离器(6)的电位变化的时间内,离子迁移谱仪或分离器(6)上游离子光学部件的离子源(1),离子导向器 2),四极质量过滤器(3),任选的第二碰撞或碎裂单元(4)和离子捕获装置(5)保持恒定。