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    • 1. 发明申请
    • ION GUIDE FOR MASS SPECTROMETRY
    • 离子指纹大分子光谱
    • WO2014057345A2
    • 2014-04-17
    • PCT/IB2013002293
    • 2013-10-11
    • DH TECHNOLOGIES DEV PTE LTD
    • BABA TAKASHI
    • H01J37/317
    • H01J49/062H01J49/0031H01J49/067H01J49/22
    • An ion guide is provided having an enclosure extending longitudinally around a central axis from a proximal inlet end to a distal outlet end. The proximal inlet end receives a plurality of ions entrained in a gas flow through an inlet orifice. A deflection plate is disposed within the enclosure between the proximal and distal ends and deflects at least a portion of the gas flow away from a central direction of the gas flow. A plurality of electrically conductive, elongate elements extend from the proximal end to the distal end within the enclosure and generate an electric field via a combination of RF and DC electric potentials. The electric field deflects the entrained ions away from the central direction of the gas flow proximal to the deflection plate and confines the deflected ions in proximity of the elongated elements as the ions travel downstream.
    • 提供离子引导件,其具有围绕中心轴线从近端入口端部至远端出口端部纵向延伸的外壳。 近端入口端容纳夹带在通过入口孔的气流中的多个离子。 偏转板在近端和远端之间的外壳内设置,并使气流的至少一部分偏离气流的中心方向。 多个导电细长元件从外壳内的近端延伸到远端,并通过RF和DC电势的组合产生电场。 电场使夹带的离子偏离靠近偏转板的气流的中心方向,并且当离子向下游行进时,将偏转的离子限制在细长元件附近。
    • 2. 发明申请
    • METHOD OF OPERATING TANDEM ION TRAPS
    • 工作台灯的操作方法
    • WO2009149546A8
    • 2011-02-17
    • PCT/CA2009000805
    • 2009-06-08
    • DH TECHNOLOGIES DEV PTE LTDGUNA MIRCEALONDRY FRANK
    • GUNA MIRCEALONDRY FRANK
    • H01J49/42
    • H01J49/4265H01J49/0031H01J49/004
    • A method for operating tandem ion traps is provided, involving a) accumulating ions in the first ion trap at a first time; b) transmitting a first plurality of ions out of the first ion trap and into the second ion trap at a second time, the first plurality of ions having masses within a first mass range; c) retaining a second plurality of ions in the first ion trap at the second time, the second plurality of ions having masses within a second mass range different from the first mass range; d) transmitting the first plurality of ions out of the second ion trap at a third time; and, e) transmitting the second plurality of ions out of the first ion trap and into the second ion trap at the third time.
    • 提供了一种用于操作串联离子阱的方法,包括:a)在第一时间将第一离子阱中的离子累积; b)在第二时间将第一多个离子从第一离子阱中传输到第二离子阱中,第一多个离子具有在第一质量范围内的质量; c)在第二时间将第二多个离子保留在第一离子阱中,第二多个离子具有在与第一质量范围不同的第二质量范围内的质量; d)第三次将第一多个离子从第二离子阱中传出; 以及e)第三次将第二多个离子从第一离子阱中传出并进入第二离子阱。
    • 5. 发明申请
    • METHOD OF PROCESSING IONS
    • 处理离子的方法
    • WO2011073794A3
    • 2011-11-03
    • PCT/IB2010003304
    • 2010-12-17
    • DH TECHNOLOGIES DEV PTE LTDHAGER JAMES WLE BLANC YVES
    • HAGER JAMES WLE BLANC YVES
    • H01J49/00
    • H01J49/005H01J49/0031
    • A method for obtaining fragment ions having product ion spectrum with a mixture of high, medium and lower energy product ions. The method includes (a) providing a selected RF field to an ion optical element upstream of an ion containment field; (b) transmitting ions through the ion optical element and into the ion containment field such that the selected RF field determines, at least in part, a selected kinetic energy profile of the ions within the ion containment field, wherein the selected kinetic energy profile is selected to fragment the ions to concurrently provide a plurality of groups of product ions; and (c) detecting each group of product ions in the plurality of groups of product ions.
    • 一种用高,中和低能量产物离子的混合物获得具有产物离子谱的碎片离子的方法。 该方法包括:(a)向离子遏制场上游的离子光学元件提供选定的RF场; (b)将离子传输通过离子光学元件并进入离子封闭场,使得所选择的RF场至少部分地确定离子封闭场内离子的选定动能轮廓,其中所选择的动能轮廓为 选择以碎裂离子以同时提供多组产物离子; 和(c)检测多组产品离子中的每组产品离子。
    • 6. 发明申请
    • METHOD AND SYSTEM FOR OPERATING A TIME OF FLIGHT MASS SPECTROMETER DETECTION SYSTEM
    • 操作飞行时间质谱仪检测系统的方法和系统
    • WO2011095863A3
    • 2011-10-27
    • PCT/IB2011000152
    • 2011-01-31
    • DH TECHNOLOGIES DEV PTE LTDLOBODA ALEXANDRE
    • LOBODA ALEXANDRE
    • H01J49/40H01J49/00
    • H01J49/025G01T1/17H01J49/0027H01J49/40
    • Dual TDC-ADC detection systems for time of flight mass spectrometry are disclosed herein. Detection systems based upon TDC generally provide higher timing resolution as opposed to detection systems based upon ADC. However, ADC generally provides increased dynamic range over TDC. By combining TDC and ADC into a tandem detector, and adjusting performance parameters of the respective converter types, the dynamic range of the dual TDC-ADC detection can be extended beyond what either detector type could have achieved individually. Composite time of flight mass spectra can be generated by aggregating individual mass spectra acquired from multiple time-of-flight extractions, and selecting the number of time-of-flight extractions to ensure overlap between the ADC and TDC dynamic ranges in the dual TDC-ADC detector system.
    • 本文公开了用于飞行时间质谱的双TDC-ADC检测系统。 与基于ADC的检测系统相反,基于TDC的检测系统通常提供更高的定时分辨率。 然而,ADC通常提供比TDC更大的动态范围。 通过将TDC和ADC组合成串联检测器,并调整各种转换器类型的性能参数,双TDC-ADC检测的动态范围可以扩展到单独检测器类型之外。 复合飞行时间质谱可以通过聚合从多次飞行时间提取获得的单个质谱,并选择飞行时间提取次数,以确保双TDC中ADC和TDC动态范围之间的重叠, ADC检测器系统。
    • 8. 发明申请
    • HIGH DYNAMIC RANGE DETECTOR CORRECTION ALGORITHM
    • 高动态范围检测器校正算法
    • WO2013171555A1
    • 2013-11-21
    • PCT/IB2013000729
    • 2013-04-19
    • DH TECHNOLOGIES DEV PTE LTD
    • COLLINGS BRUCE ANDREWDIMA MARTIANIVOSEV GORDANA
    • H01J49/26
    • H01J49/0027G01T1/171H01J49/0009H01J49/0036H01J49/025
    • Systems and methods are provided to perform dead time correction. An observed ion count rate is obtained using a non-paralyzable detection system of a mass spectrometer. The detection system includes an ion detector, a comparator/discriminator, a mono-stable circuit and a counter. The non- paralyzable detection system exhibits dead time extension at high count rates. The extension of the dead time occurs because the mono-stable circuit requires a rising edge to trigger and can only be triggered again after the output pulse from the comparator/discriminator has gone low. This allows a second comparator/discriminator pulse arriving just before the end of the dead time started by a first comparator/discriminator pulse to extend the dead time to the trailing edge of the second comparator/discriminator pulse. A true ion count rate is calculated by performing dead time correction of the observed ion count rate.
    • 提供系统和方法来执行死区时间校正。 使用质谱仪的非可分离检测系统获得观察到的离子计数率。 检测系统包括离子检测器,比较器/鉴别器,单稳态电路和计数器。 非可分析检测系统以高计数率显示死区时间延长。 由于单稳态电路需要上升沿触发,只能在比较器/鉴位器的输出脉冲变低后再次触发,才会延长死区时间。 这允许在由第一比较器/鉴频器脉冲开始的死区时间结束之前到达第二比较器/鉴频器脉冲,从而将死区时间延长到第二比较器/鉴频器脉冲的后沿。 通过对观察到的离子计数率执行死区时间校正来计算真实的离子计数率。
    • 9. 发明申请
    • SYSTEMS AND METHODS FOR RAPIDLY SCREENING SAMPLES BY MASS SPECTROMETRY
    • 通过质谱快速筛选样品的系统和方法
    • WO2012063108A2
    • 2012-05-18
    • PCT/IB2011002594
    • 2011-11-02
    • DH TECHNOLOGIES DEV PTE LTDBONNER RONALDTATE STEPHEN A
    • BONNER RONALDTATE STEPHEN A
    • H01J49/00
    • H01J49/0045H01J49/0027H01J49/0031H01J49/04
    • Systems and methods are used to rapidly screening samples. A fast sample introduction device that is non-chromatographic is instructed to supply each sample of a plurality samples to a tandem mass spectrometer using a processor. The fast sample introduction device can include a flow injection analysis device, an ion mobility analysis device, or a rapid sample cleanup device. The tandem mass spectrometer is instructed to perform fragmentation scans at two or more mass selection windows across a mass range of each sample of the plurality of samples using the processor. The two or more mass selection windows across the mass range can have fixed or variable window widths. The tandem mass spectrometer can be instructed to obtain a mass spectrum of the mass range before instructing the tandem mass spectrometer to perform the fragmentation scans.
    • 系统和方法用于快速筛选样品。 指示非色谱的快速样品引入装置使用处理器将多个样品的每个样品提供给串联质谱仪。 快速样品引入装置可以包括流动注射分析装置,离子迁移率分析装置或快速样品清除装置。 指示串联质谱仪在使用处理器的多个采样的质量范围的两个或更多个质量选择窗口上进行碎片扫描。 跨质量范围的两个或多个质量选择窗口可以具有固定或可变窗口宽度。 在指示串联质谱仪进行碎片扫描之前,可以指示串联质谱仪获得质量范围的质谱。