An extended mass range quadrupole for electrospray mass spectrometry

The mass range of a quadrupole mass spectrometer with an eleetrospray source has been increased from m/z 4000 to m/z 8585 by lowering the radio frequency of the quadrupole power supply from 1.00 MHz to 683 kHz. Unit mass resolution at m/z 5030 can be achieved. The sensitivity below m/z 3000 shows on...

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Bibliographic Details
Published in:International journal of mass spectrometry and ion processes 1997-03, Vol.162 (1), p.121-127
Main Authors: Collings, B.A., Douglas, D.J.
Format: Article
Language:English
Subjects:
Electrospray
High mass
Non-covalent complexes
Quadrupole mass spectrometer
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Summary:The mass range of a quadrupole mass spectrometer with an eleetrospray source has been increased from m/z 4000 to m/z 8585 by lowering the radio frequency of the quadrupole power supply from 1.00 MHz to 683 kHz. Unit mass resolution at m/z 5030 can be achieved. The sensitivity below m/z 3000 shows only small changes as expected from phase space arguments. Spectra of polypropylene glycol and soybean agglutinin with peaks in the range m/z 4000–7000 are described.
ISSN:0168-1176
1873-2801
DOI:10.1016/S0168-1176(96)04478-3