Comprehensive two-dimensional gas-chromatography-based property estimation to assess the fate and behavior of complex mixtures: A case study of vehicle engine oil

2019 ◽  
Vol 669 ◽  
pp. 739-745
Author(s):  
Yasuyuki Zushi ◽  
Yuki Yamatori ◽  
Jun Nagata ◽  
Deedar Nabi
Keyword(s):  
Gas Chromatography ◽  
Complex Mixtures ◽  
Engine Oil ◽  
Two Dimensional ◽  
Property Estimation ◽  
Vehicle Engine ◽  
And Behavior ◽  
Fate And Behavior

Comprehensive two-dimensional gas chromatography applied to the analysis of complex mixtures

1993 ◽  
Vol 5 (6) ◽  
pp. 511-516 ◽  
Author(s):  
Cadapakam J. Venkatramani ◽  
John B. Phillips
Keyword(s):  
Gas Chromatography ◽  
Complex Mixtures ◽  
Two Dimensional

Flow-modulated comprehensive two-dimensional gas chromatography combined with a vacuum ultraviolet detector for the analysis of complex mixtures

2017 ◽  
Vol 1497 ◽  
pp. 135-143 ◽  
Author(s):  
Mariosimone Zoccali ◽  
Kevin A. Schug ◽  
Phillip Walsh ◽  
Jonathan Smuts ◽  
Luigi Mondello
Keyword(s):  
Gas Chromatography ◽  
Vacuum Ultraviolet ◽  
Complex Mixtures ◽  
Two Dimensional ◽  
Ultraviolet Detector

The composition, origin and fate of complex mixtures in the maltene fractions of hydrothermal petroleum assessed by comprehensive two-dimensional gas chromatography

2012 ◽  
Vol 45 ◽  
pp. 48-65 ◽  
Author(s):  
Gregory T. Ventura ◽  
Bernd R.T. Simoneit ◽  
Robert K. Nelson ◽  
Christopher M. Reddy
Keyword(s):  
Gas Chromatography ◽  
Complex Mixtures ◽  
Two Dimensional

scholarly journals Analysis of unresolved complex mixtures of hydrocarbons extracted from Late Archean sediments by comprehensive two-dimensional gas chromatography (GC×GC)

2008 ◽  
Vol 39 (7) ◽  
pp. 846-867 ◽  
Author(s):  
Gregory T. Ventura ◽  
Fabien Kenig ◽  
Christopher M. Reddy ◽  
Glenn S. Frysinger ◽  
Robert K. Nelson ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Complex Mixtures ◽  
Two Dimensional ◽  
Unresolved Complex Mixtures

scholarly journals Comparison of Thermal and Flow-Based Modulation in Comprehensive Two-Dimensional Gas Chromatography—Time-of-Flight Mass Spectrometry (GC × GC-TOFMS) for the Analysis of Base Oils

Separations ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 70
Author(s):  
Haleigh A. Boswell ◽  
Matthew Edwards ◽  
Tadeusz Górecki
Keyword(s):  
Gas Chromatography ◽  
Environmental Pollutants ◽  
Engine Oil ◽  
Petroleum Processing ◽  
Two Dimensional ◽  
Characterization Methods ◽  
Ambient Temperatures ◽  
Engine Oils ◽  
Base Oils ◽  
Flight Mass Spectrometry

Base oils are produced by refining crude oil or through chemical synthesis. They are a key component of engine oils. With an immense range of carbon numbers and boiling points, analyzing such complex mixtures is very difficult. The need to monitor industrial petroleum processing steps, as well as to identify petrochemical environmental pollutants, drives the search for improved characterization methods. Comprehensive two-dimensional gas chromatography (GC × GC) is one of the best tools for that. The modulator used in GC × GC is responsible for trapping/sampling the first dimension (1D) column analytes, then reinjecting them in the form of narrow bands onto the second dimension (2D) column for further separation. Modulators used today generally fall into two categories, thermal and flow ones. Heater-based thermal modulators trap the 1D column effluent at or above ambient temperatures. Flow-based modulators utilize storage loop(s) to collect the 1D effluent, which is subsequently flushed into the second-dimension column for further separation. A single-stage, consumable-free thermal modulator and a reverse fill/flush flow modulator were compared for the characterization of base oils. Both were evaluated on their ability to achieve separation of several conventional and synthetic engine oils components. A reverse column set, polar 1D and nonpolar 2D, allowed group-type analysis of all classes, including linear, branched, and aromatic species. The results show the ability to achieve a comprehensive separation of specific compound classes and the differentiation of engine oil types and manufacturers. Soft ionization assisted in tentative identification of two alkylated diphenylamines in each sample. The advantages and limitations of both thermal and flow modulation are presented.

Sign in / Sign up

Export Citation Format

Share Document