Multiply pulsed collision gas for ion axialization in fourier‐transform ion cyclotron resonance mass spectrometry | Zendy

Guan Shengheng | Zendy; Marshall Alan G. | Zendy

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Multiply pulsed collision gas for ion axialization in fourier‐transform ion cyclotron resonance mass spectrometry

Author(s) -

Guan Shengheng,

Marshall Alan G.

Publication year - 1993

Publication title -

rapid communications in mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.528

H-Index - 136

eISSN - 1097-0231

pISSN - 0951-4198

DOI - 10.1002/rcm.1290070915

Subject(s) - fourier transform ion cyclotron resonance , chemistry , ion cyclotron resonance , mass spectrometry , ion , analytical chemistry (journal) , selected ion monitoring , ion source , reflectron , ion trap , ionization , atomic physics , hybrid mass spectrometer , argon , time of flight mass spectrometry , cyclotron , selected reaction monitoring , tandem mass spectrometry , physics , chromatography , gas chromatography–mass spectrometry , organic chemistry

We present a new multiply pulsed collision‐gas technique forion axialization for Fourier‐transform ion cyclotron resonace (FTICR) high‐resolution mass analysis. Ions are axialized in the source trap of a dural‐trap FTICR spectrometer y aimuthal quadrupolar irradiation for several tens of seconds at a steady‐state pressure maintained y repeated pulses of coolision gas (argon), folowed by removal of the collision gas and detection at a much lower pressure after transfer to the analyzer trap. Magnitufe‐mode FTICR mass resolving power, m/Δm≈1770000, for [M + K] + ions from laser‐desorbed/ionized leucne enkephalin at m/z 594 is demonstrated. This resolving power is the highest yet reported for a peptide with any type of laser desorption/ionization mass analyzer.

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