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High resolution accurate mass measurement of product ions formed in an electrospray source on a sector instrument
Author(s) -
Starrett Anne M.,
DiDonato Gerald C.
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.1290070104
Subject(s) - chemistry , electrospray , mass spectrometry , ion , analytical chemistry (journal) , dissociation (chemistry) , resolution (logic) , high resolution , ion source , chromatography , organic chemistry , remote sensing , artificial intelligence , computer science , geology
The high resolution accurate mass measurement of product ions formed by collisionally activated dissociation in an electrospray source has been achieved using a reversed‐geometry double‐focusing mass spectrometer and accelerating voltage scans. Accurate mass measurements of product ions from angiotensin I, angiotensin II, leucine enkephalinamide, substance P (1–9) and a synthetic compound of pharmaceutical interest were obtained with an average error of <5 ppm.