A high voltage asymmetric waveform generator for FAIMS.

A high voltage asymmetric waveform generator for FAIMS.
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DOI:
10.1016/j.jasms.2010.02.019
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发表时间:
2010-07
影响因子:
3.2
通讯作者:
MacCoss MJ
MacCoss MJ
中科院分区:
化学3区
文献类型:
--
作者:
Canterbury JD;Gladden J;Buck L;Olund R;MacCoss MJ

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高场非对称波形离子迁移率谱(FAIMS)作为一种先于质谱学的离子分离和选择方法,近年来得到了越来越多的应用。对于希望实施自己的FAIMS设计的实验室来说,FAIMS电极的设计和制造相对简单。然而,产生所需的以几百千赫频率振荡的高幅度非对称电场所需的电子设备的建造并不是微不足道的。在这里,我们介绍一种完全定制的电子设备设置,能够提供所需的波形和电压。该装置相对简单,实施成本也不高。我们还提供了在该系统上获得的数据,演示了FAIMS作为离子陷阱质谱仪的气相离子过滤器接口的使用。
High field asymmetric waveform ion mobility spectrometry (FAIMS) has been used increasingly in recent years as an additional method of ion separation and selection prior to mass spectrometry. The FAIMS electrodes are relatively simple to design and fabricate for laboratories wishing to implement their own FAIMS designs. However, construction of the electronics apparatus needed to produce the required high magnitude asymmetric electric field oscillating at a frequency of several hundred kilohertz is not trivial. Here we present an entirely custom-built electronics setup capable of supplying the required waveforms and voltages. The apparatus is relatively simple and inexpensive to implement. We also present data acquired on this system demonstrating the use of FAIMS as a gas phase ion filter interface to an ion trap mass spectrometer.
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期刊: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
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