Development and evaluation of supercritical fluid chromatography/mass spectrometry for polar and high molecular weight coal components

Conference · Fri Jun 01 04:00:00 EDT 1984

OSTI ID:6230833

Chess, E K; Smith, R D

Scope of this program includes application of this instrumentation in support of synfuel process development. The high chromatographic resolution possible with fine (<75 ..mu..m ID) capillary column supercritical fluid chromatography (SFC) is anticipated to allow the extension of high resolution mass spectrometry (MS) to the characterization of polar high molecular weight materials that cannot be separated by gas chromatography (GC). The program will involve the development of a new SFC/MS interface capable of allowing direct fluid injection (DFI) and supercritical fluid chromatographic introduction of a wide range of samples into the ion source of a double-focusing, high resolution mass spectrometer. The initial design for the interface has been completed, and the new ion source has been fabricated and successfully tested. Initial DFI experiments using nonpolar supercritical fluids, such as pentane and carbon dioxide, will commence following fabrication of the SFC/MS interface, currently under construction. The product of this program is expected to provide improved characterization of complex high molecular weight and polar fuel components, and to determine the feasibility of using SFC/MS or DFI/MS methods for on-line characterization of synfuel processes.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6230833
• Report Number(s): PNL-SA-12298; CONF-840694-9; ON: DE85000827
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
&amp; Peat-- Properties &amp; Composition
09 BIOMASS FUELS
090000 -- Biomass Fuels
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400100* -- Analytical &amp; Separations Chemistry
BLOOD VESSELS
BODY
CAPILLARIES
CARDIOVASCULAR SYSTEM
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
EXTRACTION
FLUIDS
FUELS
INJECTION
INTAKE
LIQUEFACTION
LIQUIDS
MASS SPECTROSCOPY
ORGANS
SEPARATION PROCESSES
SPECTROSCOPY
SUPERCRITICAL GAS EXTRACTION
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES