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Matrix‐assisted laser desorption/ionization inside a quadrupole ion‐trap detector cell
Author(s) -
Doroshenko Vladimikr M.,
Cornish Timothy J.,
Cotter Robert J.,
Ross Mark M.
Publication year - 1992
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.1290061208
Subject(s) - chemistry , soft laser desorption , atmospheric pressure laser ionization , laser , ionization , quadrupole ion trap , desorption , mass spectrometry , ion , ambient ionization , ion trap , matrix assisted laser desorption electrospray ionization , analytical chemistry (journal) , atomic physics , ion source , electrode , matrix assisted laser desorption/ionization , chemical ionization , optics , photoionization , electron ionization , chromatography , physics , adsorption , organic chemistry
An ion‐trap detector has been modified for matrix‐assisted laser desorption/ionization using a pulsed frequency‐quadrupled Nd: YAG laser and extended mass range up to 3300 u using the resonant‐rejection mode of operation. The matric‐assisted laser desorption/ionization mass spectra of a number of peptides are reported, and the effects due to the synchronization of the laser pulses and the phase of the RF voltage applied to the ring electrode are described.