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公开(公告)号：WO2023079761A1
公开(公告)日：2023-05-11
申请号：PCT/JP2021/041050
申请日：2021-11-08
申请人： 株式会社島津製作所
发明人： 水谷 司朗
摘要： 質量分析装置は、質量フィルタと、検波ユニットと、打消回路と、電源装置とを備える。質量フィルタは、印加された交流電圧に対応する質量電荷比を有するイオンを選択する。検波ユニットは、各々が整流素子を含みかつ並列に接続された複数の整流部を有し、質量フィルタに印加される交流電圧を検波電圧として検波する。打消回路は、整流素子の漏れ電流に起因する交流電圧のオフセットを打ち消す。電源装置は、検波電圧に基づいて、打消回路によりオフセットが打ち消された交流電圧を質量フィルタに印加する。
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公开(公告)号：WO2023026192A1
公开(公告)日：2023-03-02
申请号：PCT/IB2022/057895
申请日：2022-08-23
发明人： COX, David M. , GUNA, Mircea , KANG, Yang , MANOLESCU, Mircea , SONOC, Andrei
IPC分类号： H01J49/42
摘要： An ion mass filter for use in a mass spectrometer is disclosed, which includes a plurality of rods arranged in a multipole configuration to provide a passageway through which ions can travel, said plurality of rods being configured for application of RF voltages thereto to generate an electromagnetic field within the passageway for providing radial confinement of the ions and further configured for application of a DC voltage thereto, and at least two pairs of auxiliary electrodes interspersed between the plurality of multipole rods, where one pair forms a first pole of the auxiliary electrodes and the other pair forms a second pole of the auxiliary electrodes. A controller can provide one or more control signals to the DC voltage source so as to switch the polarity of the DC voltage differential between the two poles according to a predefined criterion.
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公开(公告)号：WO2022214815A1
公开(公告)日：2022-10-13
申请号：PCT/GB2022/050871
申请日：2022-04-07
申请人： HGSG LTD
发明人： HOYES, John Bryan
摘要： A charge detection mass spectrometer, CDMS, is described. The CDMS comprises: an electrostatic sector field ion trap and an inductive charge detector, wherein the electrostatic sector field ion trap is configured to define, at least in part, an ion path via the inductive charge detector; and a fragmentation device. A method is also described.
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公开(公告)号：WO2022195536A1
公开(公告)日：2022-09-22
申请号：PCT/IB2022/052446
申请日：2022-03-17
发明人： HAGER, James
摘要： In one aspect, a mass spectrometer is disclosed, which comprises an ion source for receiving a sample and ionizing at least a portion of the sample to generate a plurality of ions, and a Fourier Transform (FT) mass analyzer that is configured to receive at least a portion of said plurality of ions at an inlet thereof. The ions exiting the FT are detected by an ion detector, which generates a transient oscillating ion detection signal. The analyzer processes the ion detection signal via application of an FT thereto, where the FT window width is selected to optimize a mass signal associated with at least one target ion of interest.
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公开(公告)号：WO2022180570A1
公开(公告)日：2022-09-01
申请号：PCT/IB2022/051644
申请日：2022-02-24
IPC分类号： H01J49/42 , H01J49/4245 , H01J49/4295
摘要： Methods and systems for operating an ELIT are provided herein. In accordance with various aspects of the present teachings, and ELIT is provided that can enable simultaneous trapping of two different groups of ions as each group oscillates along a different path length within the ELIT.
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6.发明申请
公开(公告)号：WO2022168005A1
公开(公告)日：2022-08-11
申请号：PCT/IB2022/051008
申请日：2022-02-04
IPC分类号： H01J49/42
摘要： In one aspect, a mass spectrometer is disclosed, which comprises an ion trap having a plurality of electrodes arranged in a multipole configuration so as to provide an inlet for receiving ions along a longitudinal axis into a space between the electrodes, where at least one of the plurality of electrodes comprises a passageway through which ions can be extracted radially from the ion trap. The electrodes are configured for application of one or more RF voltages thereto for providing radial confinement of the ions, and a DC voltage source configured to apply a dipolar DC voltage pulse across said at least one electrode and an opposed electrode for causing radial extraction of at least a portion of said ions from said ion trap through said passageway.
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公开(公告)号：WO2022131379A1
公开(公告)日：2022-06-23
申请号：PCT/JP2021/046871
申请日：2021-12-17
申请人： 株式会社日立ハイテク
摘要： 本発明は、装置の異常個所を特定可能な質量分析装置の制御方法を提供するものである。試料中の化合物をイオン化するイオン源と、イオンを質量電荷比に応じて分離する質量分析部と、イオン源で生成されたイオンを質量分析部まで輸送する電場を形成する複数の電極と、を備えた質量分析装置の制御方法であって、試料をイオン源によってイオン化し、電極と質量分析部を構成する四重極マスフィルタとに堆積するイオンを、イオンの透過率の時間変化により検知し、イオン源のイオン化効率の変化を、イオン源のガス流量または電圧に対するイオン量の変化により検知する質量分析装置の制御方法を提供する。
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8.发明申请
公开(公告)号：WO2022013715A1
公开(公告)日：2022-01-20
申请号：PCT/IB2021/056257
申请日：2021-07-12
发明人： BABA, Takashi , GODBEHERE, Grant
摘要： In one aspect, a method of performing mass spectrometry is disclosed, which comprises ionizing a sample to generate a plurality of precursor ions, passing the precursor ions through a mass filter to select at least one subset of the ions, introducing the selected ions into a branched radiofrequency (RF) ion trap and subjecting at least a portion of said selected precursor ions to fragmentation within the ion trap so as to generate a first plurality of fragment ions. The method can further include isolating at least a portion of the first plurality of fragment ions in at least one branch of the branched RF ion trap, removing unwanted fragment ions, releasing the remaining ions from said at least one branch and subjecting at least a portion thereof to fragmentation so as to generate a second plurality of fragment ions. Any combination of collision induced dissociation (CID) and electron activation dissociation (EAD) can be employed for fragmenting the ions.
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公开(公告)号：WO2021247820A1
公开(公告)日：2021-12-09
申请号：PCT/US2021/035641
申请日：2021-06-03
IPC分类号： B01D59/44 , G01N27/622 , G01N30/72 , H01J29/70 , H01J49/42 , H03K5/156 , G01N27/623 , H01J49/0031 , H01J49/022 , H01J49/061 , H01J49/062 , H01J49/10
摘要： An apparatus for ion manipulation having improved duty cycle includes first and second separation regions separated by a switch that alternates between guiding ions to each of the separation regions. The separation regions separate the ions based on mobility over respective time periods that at least partially overlap. The apparatus can additionally or alternatively include a pre-separation region that filters ions prior to accumulating ions, thus allowing an accumulation region to accumulate for a longer time period. The apparatus can additionally or alternatively include a plurality of gates along the separation region(s) to simultaneously filter a plurality of ion packets sequentially released into the separation region(s). Methods for ion manipulation having improved duty cycle involve separating ions on two separation regions over first and second time periods that at least partially overlap, pre-filtering ions prior to accumulation and separation, and/or simultaneously filtering a plurality of ions packets are also provided.
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公开(公告)号：WO2021186192A1
公开(公告)日：2021-09-23
申请号：PCT/GB2021/050689
申请日：2021-03-19
申请人： MICROMASS UK LIMITED
摘要： An ion guide assembly (2) is disclosed comprising: two planar mounting components (4); and first and second ion guides (6,8) mounted on the two planar mounting components such that the ion guides are spaced apart from each other, wherein at least one of the planar mounting components has an aperture (14) therethrough that is located between the positions on said at least one mounting component at which the first and second ion guides are mounted; and an ion optical device sized and configured to be inserted through the aperture in the planar mounting component and into the space between the first and second ion guides.
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