MULTIPLE COMPENSATION VOLTAGE FRACTION COLLECTION
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
May 17, 2024
filing date -
May 17, 2024
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Abstract
A system for collecting multiple compensation voltage fractions includes a field asymmetric-waveform ion-mobility spectrometry (FAIMS) device which receives ions generated from a sample, such as a biological sample. A mass spectrometer injection gate is configured to inject, when in an open state, ions transmitted by the FAIMS device into a mass analyzer of the mass spectrometer. A controller circuit is configured to open the injection gate and apply a dynamic compensation voltage (CV) to an electrode of the FAIMS device while the injection gate is open. The dynamic CV can have a waveform in the shape of a ramp, triangle, wavelet, sinusoid, or another shape. The dynamic CV includes CVs associated with multiple adjacent CV fractions, and the FAIMS device is configured to transmit the multiple adjacent CV fractions into the mass analyzer via the open injection gate to be scanned together by the mass analyzer in a single experiment.
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