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Investigation into the factors affecting accuracy of mass measurements on a time‐of‐flight mass spectrometer using Design of Experiment
Author(s) -
Laures Alice M.F.,
Wolff JeanClaude,
Eckers Christine,
Borman Phil J.,
Chatfield Marion J.
Publication year - 2007
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.2852
Subject(s) - chemistry , analyte , mass spectrometry , time of flight , calibration , spectrometer , analytical chemistry (journal) , time of flight mass spectrometry , triple quadrupole mass spectrometer , resolution (logic) , acceleration , quadrupole mass analyzer , ion , computational physics , selected reaction monitoring , statistics , chromatography , optics , physics , computer science , mathematics , tandem mass spectrometry , organic chemistry , classical mechanics , artificial intelligence , ionization
The results of an investigation of the parameters which have the most significant effect on the accuracy of mass measurements on a quadrupole orthogonal acceleration time‐of‐flight mass spectrometer (q‐oaToF) are reported. The influence of eight factors is investigated: ion abundances of reference and analyte compounds, mass difference between analyte and reference compounds, quality of calibration, number of reference acquisitions averaged and TDC (time‐to‐digital converter) settings (resolution, Np multiplier (number of pushes correction factor), minimum number of points, i.e. minimum acquisition width which defines a peak). To extract the maximum information from as few experiments as possible, a Design of Experiment approach was used. The data will be used as a basis for developing guidance on accurate mass measurement on q‐oaToF instruments. Copyright © 2007 John Wiley & Sons, Ltd.