Trapping ion mobility spectrometer with parallel accumulation
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United States of America Patent
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Jun 20, 2017
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Aug 11, 2016
app pub date -
Feb 5, 2015
filing date -
Feb 5, 2015
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Abstract
The invention relates to the operation of trapping ion mobility spectrometers based on pushing ions by a gas flow against a counter-acting electric DC field barrier, preferably in combination with a mass analyzer as ion detector. The invention provides an additional RF ion trap upstream of the trapping ion mobility spectrometer, wherein the RF ion trap is operated as an accumulation unit in parallel with the trapping ion mobility spectrometer such that a first group of ions can be analyzed in the trapping ion mobility spectrometer while a second group of ions from an ion source are simultaneously collected in accumulation unit.
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