Sentences with phrase «fragment ions were»
The LTQ - Orbitrap Velos MS / MS data were first processed by in - house software DeconMSn [21] accurately determining the monoisotopic mass and charge state of parent ions, followed by SEQUEST search against the IPI database in the same fashion as described above, with the exception that a 0.1 - Dalton mass tolerance for precursor ions and 1 - Dalton mass tolerance for fragment ions were used.
http://journals.plos.org/ Not exact matches
They believe these can be identified by observing the way incoming ions fragment liquid droplets into multiple smaller droplets.
Mass tolerances of 3 Daltons for precursor ions and 1 Dalton for fragment ions without an enzyme defined, as well as static carboxyamidomethylation of cysteine and dynamic oxidation of methionine were used for the database search.
The ion at m / z 153 corresponded to the LPA - specific fragment ion.
After electrospray ionization, selected ion fragments were detected and quantified in the API4000 triple - quadrupole tandem MSMS (Applied Biosystems / Sciex).