Heteroatam speciation in coal liquefaction via FTIR coupled with liquid chromatography. Quarterly progress report, April 1, 1983-June 30, 1983

Technical Report · Tue Nov 01 04:00:00 EST 1983

OSTI ID:5229290

Taylor, L T

By employing short microbore columns (50 cm) with a 0.2 mm pathlength cell and a wide range detectorl LC-FTIR is capable of detecting and identifying the injection of sub-microgram quantities of a variety of compound classes. By increasing the pathlength of the flow cell and decreasing its volume to approx. 1 ..mu..L while employing the more sensitive restricted range detector, good quality spectra should be obtained from several hundred nanograms of injected compounds. Derivatization can aid detectability and improve chromatographic performance for polar compounds such as amines and phenols. This technique should help HPLC-FTIR find more general utility in the analytical laboratory. Faster acquisition rates can be obtained by going to lower spectral resolution (i.e. 8 cm/sup -1/) or by increasing the mirror velocity (up to approx. 5 times faster) or both while still maintaining comparable or improved S/N. Alternatively, this could provide finer chromatographic detection. The latter would cause a large consumption of disk space which for long chromatographic runs is limited with our current system. Additional disk hardware can alleviate this problem. 25 references, 5 tables, 2 figures.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg (USA)
• DOE Contract Number: FG22-81PC40799
• OSTI ID: 5229290
• Report Number(s): DOE/PC/40799-T8; ON: DE84002134
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
AMINES
AROMATICS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUIDS
DERIVATIZATION
FLUIDS
FOURIER TRANSFORMATION
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PHENOLS
SEPARATION PROCESSES
SOLVENTS
SPECTRA
TRANSFORMATIONS