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High-Resolution Mass Spectrometry with a Multiple Pass Quadrupole Mass Analyzer
Journal article   Peer reviewed

High-Resolution Mass Spectrometry with a Multiple Pass Quadrupole Mass Analyzer

Ma'an H Amad and R. S Houk
Analytical chemistry (Washington), Vol.70(23), pp.4885-4889
01/12/1998
DOI: https://doi.org/10.1021/ac980505w
PMID: 21644671

Abstract

The peak shape narrows and the resolution improves if the ions are simply reflected back and forth through a conventional quadrupole mass analyzer. CO+ and N2 + at m/z = 28 are separated to 50% valley with half of the original signal remaining. These two ions can be resolved to baseline (m/Δm) = 5000 with 1% of the original signal remaining.

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