Multidimensional GC-Fourier Transform Ion Cyclotron Resonance MS Analyses: Utilizing Gas-Phase Basicities to Characterize Multicomponent Gasoline Samples

被引：18

作者：

Luo, Zhaohui ^{[1
]}

Heffner, Caleb ^{[1
]}

Solouki, Touradj ^{[1
]}

机构：

[1] Univ Maine, Dept Chem, Orono, ME 04469 USA

来源：

JOURNAL OF CHROMATOGRAPHIC SCIENCE | 2009年 / 47卷 / 01期

关键词：

IONIZATION MASS-SPECTROMETRY; IRON(I) CHEMICAL-IONIZATION; FT-ICR MS; PROTON AFFINITY; CHROMATOGRAPHY; IDENTIFICATION; OIL; MECHANISM; KINETICS; NMR;

D O I：

10.1093/chromsci/47.1.75

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Hydrocarbon isomers, present in crude petroleum, may yield similar gas chromatography (GC) retention times and indistinguishable mass spectral patterns. Hence, conventional GC-mass spectrometry (MS) may not provide sufficient data for identification of hydrocarbon isomers. Real-time proton affinity or gas-phase basicity bracketing" provides an additional dimension to GC-MS analyses. Our GC-fourier transform (FT)-ion cyclotron resonance (ICR)-MS yielded an average mass measurement error of less than 3 ppm for components of a retail gasoline sample. The combined use of concurrent thermo-chemical measurements with GC-FT-ICR-MS data analysis allowed differentiation of various isomers such as C8H10 species."

引用

页码：75 / 82

页数：8

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