Multipole ion guide ion trap mass spectrometry with MS/MSN analysis
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United States of America Patent
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Dec 3, 2013
Grant Date -
Dec 15, 2011
app pub date -
Jun 20, 2011
filing date -
Feb 28, 1994
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Abstract
A method includes directing ions from an atmospheric pressure ion source to a first ion guide; directing ions in the first ion guide to a second ion guide, the second ion guide being a multipole ion guide extending along an axis; periodically directing ions along the axis; receiving at least some of the ions in a time-of-flight analyzer; accelerating the ions in the time-of-flight mass analyzer orthogonal to the axis; and detecting the accelerated ions.
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