Research Progress and Application of Ion Funnel Technique |
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Authors: | Teng GUO Zhen PENG Hui ZHU Li XU Jun-Guo DONG Zheng-Xu HUANG Ping CHENG Zhen ZHOU |
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Institution: | 1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;2. Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China;3. Kunshan Hexin Mass Spectrometry Technology Co., Ltd., Kunshan 215311, China |
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Abstract: | Ion funnel is a new-style ion guider which can reduce spatial divergence and energy dispersity of the transmission ions by using radio frequency (RF) electric field to confine the ions radially and the direct current (DC) axial electric field to move the ions toward the exit, and thus it can greatly increase the ion transmission efficiency and improve the sensitivity of the mass spectrometry. Since ion funnel was invented in 1997, it has attracted a close attention of mass spectrometry scientists all over the world. Ion funnel has been used in various kinds of mass spectrometry, and built a bridge with high efficiency ion transmission between low vacuum ionization source and high vacuum mass analyzer. In this paper, the principle, technology development, and application progress of ion funnel are reviewed, and the future prospects are prospected. |
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Keywords: | Ion funnel Radio frequency Transmission efficiency Mass spectrometry Review |
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