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High field asymmetric ion mobility spectrometry (FAIMS) methods and devices with voltage-gas composition linked scans
High field asymmetric ion mobility spectrometry (FAIMS) methods and devices with voltage-gas composition linked scans
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机译:具有电压-气体成分链接扫描的高场非对称离子迁移谱(FAIMS)方法和设备
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摘要
Improved methods and devices for analysis of gas phase ions via ion mobility type analyzers, particularly high field asymmetric waveform ion mobility analyzers (FAIMS), by linking gas composition and/or flow rate with the scanning of compensation voltage or asymmetric waveform amplitude are provided. Linking these parameters results in improvements in resolution, sensitivity, and selectivity. The methods and devices according to the presently disclosed subject matter provide for the improvement in resolution for specific ions without affecting the entire FAIMS spectrum.
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