Mass spectrometer arranged to perform MS/MS/MS
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United States of America Patent
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May 21, 2013
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app pub date -
Jan 20, 2010
filing date -
Jan 21, 2009
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Abstract
A mass spectrometer is disclosed comprising an ion trap and a fragmentation device. Ions are fragmented in the ion trap to form first generation fragment ions. The ion trap has a relatively high mass cut-off. The first generation fragment ions are then transferred to a fragmentation device which is arranged to have a substantially lower low mass cut-off. The first generation fragment ions are fragmented within the fragmentation device any may optionally be stored in an ion accumulation region prior to being passed to a mass analyser for subsequent mass analysis.
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