Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
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Introduction<br />
measurements. Next data interpretation skills are performed to visualise the<br />
acquired data in its most informative form (Figure 1-4).<br />
Figure 1-4 Complex data management<br />
Table 1.1 Reference studies targeting various hydrocarbons<br />
Methodology Tested Hydrocarbons Product Ions Drawback Ref.<br />
DESI-Iontrap-MS<br />
Alkanes (C 15 to C 30 )<br />
Petroleum distillate<br />
[M+2O+BA] +<br />
Extensive dehydrogenation<br />
species observed<br />
57<br />
MALDI-RTOF-260<br />
High mass n-alkanes<br />
Polyethylene<br />
[Co(Cp) 2 (alkane-2H 2 )] +<br />
Organometallic matrix<br />
interactions<br />
60<br />
FD-MS<br />
Saturated and aromatic HCs<br />
Polywax<br />
[M-2H] +<br />
Low ionisation efficiency<br />
<strong>of</strong> product ion<br />
61<br />
FD-MS<br />
Large branched<br />
hydrocarbons<br />
Low abundance M •+ Extensive fragmentation 64<br />
LC/FI-MS<br />
Paraffins-Napthenes-<br />
Isoparaffins<br />
M •+<br />
Fragment ions for<br />
isoparaffins<br />
63<br />
n-paraffins<br />
GC-FI-TOF-MS<br />
VGO distillate(S<br />
heterocycles)<br />
M •+ Selective 62<br />
APPI-FT ICR-MS<br />
Naphtho[2,3-a]pyrene<br />
Crude oil<br />
[M+H] + , [M-H] ‾ , M •+<br />
Complication <strong>of</strong> mass<br />
spectra<br />
30<br />
19