期刊
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
卷 21, 期 7, 页码 1218-1222出版社
SPRINGER
DOI: 10.1016/j.jasms.2010.03.033
关键词
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资金
- National Institutes of Health [R01NS065263]
- Brain Science Foundation
- Daniel E. Ponton Fund for the Neurosciences
The relationship of magnetic field strength and Fourier transform ion cyclotron resonance mass spectrometry performance was tested using three instruments with the same design but different fields of 4.7, 7, and 9.4 tesla. We found that the theoretically predicted transformative effects of magnetic field are indeed observed experimentally. The most striking effects were that mass accuracy demonstrated similar to second to third order improvement with the magnetic field, depending upon the charge state of the analyte, and that peak splitting, which prohibited automated data analysis at 4.7 T, was not observed at 9.4 T. (J Am Soc Mass Spectrom 2010, 21, 1218-1222) (C) 2010 American Society for Mass Spectrometry
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