Supercritical fluid chromatography/supersonic jet spectroscopy: Progress report, December 1, 1987-Feburary 29, 1988

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5232668

Goates, S R; Lee, M L

Work has included exploration of the characteristics of the high-pressure sheath flow nozzle for use with supersonic jet spectroscopy, preliminary testing of the direct-expansion pulsed nozzle, packed-column supercritical fluid chromatography experiments with direct-expansion supersonic jet fluorescence spectroscopy, and continued development of the pulsed, low-pressure sheath-flow nozzle and of a fully degenerate four-wave mixing detection scheme. We have obtained very good spectra of perylene with the high pressure sheath-flow nozzle. The entire nozzle asembly was heated by a thermal coaxial heater wrapped around the nozzle body, and the heating effect was further enhanced by putting a small copper tube along the tip of the column restrictor. Examination of the temperature gradient by the method described in our last report helped us to properly configure the heater, and now we are constructing a more practical (less jury-rigged) heater. 3 refs., 3 figs.

• Research Organization: Brigham Young Univ., Provo, UT (USA). Dept. of Chemistry
• DOE Contract Number: FG22-86PC90534
• OSTI ID: 5232668
• Report Number(s): DOE/PC/90534-9; ON: DE88007935
• Country of Publication: United States
• Language: English

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420400 -- Engineering-- Heat Transfer & Fluid Flow
ARGON
AROMATICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL TAR
CONDENSED AROMATICS
DESIGN
DOCUMENT TYPES
ELEMENTS
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FLUID FLOW
FLUIDS
FLUORESCENCE SPECTROSCOPY
GASES
HEATING
JETS
LASERS
LIQUEFACTION
MODIFICATIONS
NONMETALS
NOZZLES
ORGANIC COMPOUNDS
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OXIDES
OXYGEN COMPOUNDS
PERYLENE
PROGRESS REPORT
RARE GASES
SEPARATION PROCESSES
SPECTRA
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SUPERCRITICAL FLUID CHROMATOGRAPHY
SUPERSONIC FLOW
TAR
THERMOCHEMICAL PROCESSES