A Method of Qualitative and Quantitative Analysis on Fluid Catalytic Cracking Full Range Gasoline by Comprehensive Two-Dimensional Gas Chromatography Coupled with Time-of-Flight Mass Spectrometry
10.11895/j.issn.0253-3820.160714
- VernacularTitle:全二维气相色谱-飞行时间质谱对催化裂化汽油的定性与定量分析
- Author:
Li XIN
;
Chaohe YANG
;
Xiang FENG
;
Yibin LIU
;
Xiaobo CHEN
;
Honghong SHAN
- Keywords:
Fluid catalytic cracking gasoline;
Comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry;
Qualitative and quantitative analysis quantitative
- From:
Chinese Journal of Analytical Chemistry
2017;45(4):489-494
- CountryChina
- Language:Chinese
-
Abstract:
A method of qualitative and quantitative analysis on fluid catalytic cracking (FCC) full range gasoline by comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC-TOF MS) was established. The results showed that paraffins, olefins, naphthenes and aromatics in FCC gasoline had regional and zonal distribution in two-dimensional contour plots. The distinctions of boiling points and polarity between different compounds were used to achieve the accurate separation and determination in GC×GC-TOF MS analysis, and consequently the co-current flow which was often present in the conventional GC analysis was greatly suppressed. The difference of ionizing efficiency between different compounds was modified by response factors, and moreover, a good quantitative dependency was found between the analysis results of GC and GC×GC-TOF MS on FCC gasoline. Due to the high separation resolution, GC×GC-TOF MS gave more accurate results about the group compositions of FCC gasoline. GC×GC-TOF MS provided an effective way with high precision for the characterization of FCC gasoline.
