Application of unconventional solvents and /sup 252/Cf-plasma desorption spectrometry in studies of coal. Annual report Feb 82-Jan 83

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

OSTI ID:5888583

Zoeller, Jr, J H

The technique of Californium-252 Plasma Desorption Mass Spectrometry (CFPDMS) was used to screen coals and their DMSO extracts. A number of positive and negative ions originating from the sample have been detected in the molecular weight range 200-2000, although impurity ions are widespread throughout the spectra. Among the coal derived ions are (1) homologous series with mass periodicities of 12, 14, 44 and 75, (2) ions corresponding to RCOOHH (+1), RCOOHNa (1+), RCOO (-1), (3) specific ions seen in samples of different coals. Spectroscopic analysis of Wilcox Lignite and its DMSO extracts has yielded a functional group profile of the coal, including the distribution of types of carbon atoms, hydrogen atoms, oxygen functionalities, bound cations and exchangeable protons. Interpretation of the CFPDMS spectra in terms of this profile is in its preliminary stage.

• Research Organization: Texas A and M Univ., College Station (USA). Dept. of Chemistry
• OSTI ID: 5888583
• Report Number(s): PB-83-211946
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CARBONACEOUS MATERIALS
CHARGED PARTICLES
COAL
DMSO
ENERGY SOURCES
EVEN-EVEN NUCLEI
EXTRACTION
FOSSIL FUELS
FUELS
HEAVY NUCLEI
IONS
ISOTOPES
MASS SPECTROSCOPY
MATERIALS
MOLECULAR STRUCTURE
NUCLEI
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RADIOISOTOPES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SULFOXIDES
YEARS LIVING RADIOISOTOPES