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Application of phase correction to improve the interpretation of crude oil spectra obtained using 7 T Fourier transform ion cyclotron resonance mass spectrometry
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Cho, Yunju, Qi, Yulin, O’Connor, Peter B., Barrow, Mark P. and Kim, Sunghwan (2014) Application of phase correction to improve the interpretation of crude oil spectra obtained using 7 T Fourier transform ion cyclotron resonance mass spectrometry. Journal of The American Society for Mass Spectrometry, Volume 25 (Number 1). pp. 154-157. doi:10.1007/s13361-013-0747-1 ISSN 1044-0305.
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Official URL: http://dx.doi.org/10.1007/s13361-013-0747-1
Abstract
In this study, a phase-correction technique was applied to the study of crude oil spectra obtained using a 7 T Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). 7 T FT-ICR MS had not been widely used for oil analysis due to the lower resolving power compared with high field FT-ICR MS. For low field instruments, usage of data that has not been phase-corrected results in an inability to resolve critical mass splits of C3 and SH4 (3.4 mDa), and 13C and CH (4.5 mDa). This results in incorrect assignments of molecular formulae, and discontinuous double bond equivalents (DBE) and carbon number distributions of S1, S2, and hydrocarbon classes are obtained. Application of phase correction to the same data, however, improves the reliability of assignments and produces continuous DBE and carbon number distributions. Therefore, this study clearly demonstrates that phase correction improves data analysis and the reliability of assignments of molecular formulae in crude oil anlayses.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of The American Society for Mass Spectrometry | ||||
Publisher: | Springer New York LLC | ||||
ISSN: | 1044-0305 | ||||
Official Date: | January 2014 | ||||
Dates: |
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Volume: | Volume 25 | ||||
Number: | Number 1 | ||||
Page Range: | pp. 154-157 | ||||
DOI: | 10.1007/s13361-013-0747-1 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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