Method of Mass Spectrometry and Mass Spectrometer Using Peak Deconvolution
    1.
    发明申请
    Method of Mass Spectrometry and Mass Spectrometer Using Peak Deconvolution 有权
    使用峰值去卷积的质谱法和质谱仪的方法

    公开(公告)号:US20130168546A1

    公开(公告)日:2013-07-04

    申请号:US13576344

    申请日:2011-02-14

    IPC分类号: H01J49/00 H01J49/40

    CPC分类号: H01J49/0036 H01J49/40

    摘要: A method of mass spectrometry is disclosed wherein a signal output from an ion detector is digitised by an Analogue to Digital Converter and is then deconvoluted to determine one or more ion arrival times and one more ion arrival intensities. The process of deconvoluting the ion signal involves determining a point spread function characteristic of an ion arriving at and being detected by the ion detector. A distribution of ion arrival times which produces a best fit to the digitised signal is then determined given that each ion arrival is assumed to produce a response given by the point spread function. A plurality of ion arrival times are then combined to produce a composite ion arrival time-intensity spectrum.

    摘要翻译: 公开了一种质谱法,其中从离子检测器输出的信号被模拟数字转换器数字化,然后进行解卷积,以确定一个或多个离子到达时间和一个离子到达强度。 去卷积离子信号的过程涉及确定到达并被离子检测器检测的离子的点扩散函数特征。 因此,假设每个离子到达产生由点扩散函数给出的响应,则确定产生与数字化信号最佳拟合的离子到达时间的分布。 然后将多个离子到达时间组合以产生复合离子到达时间强度谱。

    Method of mass spectrometry and mass spectrometer using peak deconvolution
    2.
    发明授权
    Method of mass spectrometry and mass spectrometer using peak deconvolution 有权
    使用峰值去卷积的质谱法和质谱仪的方法

    公开(公告)号:US08735808B2

    公开(公告)日:2014-05-27

    申请号:US13576344

    申请日:2011-02-14

    IPC分类号: H01J49/40 G01R23/16

    CPC分类号: H01J49/0036 H01J49/40

    摘要: A method of mass spectrometry is disclosed wherein a signal output from an ion detector is digitized by an Analogue to Digital Converter and is then deconvoluted to determine one or more ion arrival times and one more ion arrival intensities. The process of deconvoluting the ion signal involves determining a point spread function characteristic of an ion arriving at and being detected by the ion detector. A distribution of ion arrival times which produces a best fit to the digitised signal is then determined given that each ion arrival is assumed to produce a response given by the point spread function. A plurality of ion arrival times are then combined to produce a composite ion arrival time-intensity spectrum.

    摘要翻译: 公开了一种质谱法,其中从离子检测器输出的信号被模拟数字转换器数字化,然后进行解卷积,以确定一个或多个离子到达时间和一个离子到达强度。 去卷积离子信号的过程涉及确定到达并被离子检测器检测的离子的点扩散函数特征。 因此,假设每个离子到达产生由点扩散函数给出的响应,则确定产生与数字化信号最佳拟合的离子到达时间的分布。 然后将多个离子到达时间组合以产生复合离子到达时间强度谱。

    Mass Spectrometer
    3.
    发明申请
    Mass Spectrometer 有权
    质谱仪

    公开(公告)号:US20140326867A1

    公开(公告)日:2014-11-06

    申请号:US14270433

    申请日:2014-05-06

    IPC分类号: H01J49/00 H01J49/40

    CPC分类号: H01J49/0036 H01J49/40

    摘要: A mass spectrometer is disclosed wherein an ion signal is split into a first and second signal. The first and second signals are multiplied by different gains and are digitised. Arrival time and intensity pairs are calculated for both digitised signals and the resulting time and intensity pairs are combined to form a high dynamic range spectrum. The spectrum is then combined with other corresponding spectra to form a summed spectrum.

    摘要翻译: 公开了一种质谱仪,其中离子信号被分成第一和第二信号。 第一和第二信号乘以不同的增益并被数字化。 对于两个数字化信号计算到达时间和强度对,并且将所得到的时间和强度对组合以形成高动态范围谱。 然后将光谱与其他对应的光谱组合以形成相加光谱。

    Mass spectrometer
    9.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US08952320B2

    公开(公告)日:2015-02-10

    申请号:US11719665

    申请日:2005-11-18

    IPC分类号: H01J49/26 H01J49/42

    CPC分类号: H01J49/4215 H01J49/428

    摘要: 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).

    摘要翻译: 公开了一种质谱仪,其包括四极杆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。 有缺口的宽带频率信号(10)使不想要的离子从离子导向器(6)共振地弹出。 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装置(6)使得具有不同质荷比的多个所需离子能够由离子导向器或质量过滤装置(6)同时传输,而其它离子从离子导向器或质量过滤器 装置(6)。