Spin dynamics in the carbon-13 nuclear magnetic resonance spectrometric analysis of coal by cross polarization and magic-angle spinning

Journal Article · Sun Aug 01 00:00:00 EDT 1982 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00246a034· OSTI ID:6930978

Sullivan, M J; Maciel, G E

A detailed relaxation study has been carried out on an eastern bituminous coal from the Powhatan No. 5 mine. Emphasis is on the relaxation parameters that determine the analytical reliability of /sup 13/C CP/MAS experiments. The apparent aromaticity obtained with a contact time of 1 ms is in agreement with the value obtained from a Bloch-decay experiment. The efficiency of the /sup 13/C CP/MAS analysis of coal is discussed, including consideration of low-temperature work.

• OSTI ID: 6930978
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 54:9; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ACCURACY
ANGULAR MOMENTUM
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
COAL
ENERGY SOURCES
EVEN-ODD NUCLEI
FOSSIL FUELS
FUELS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
PARTICLE PROPERTIES
POLARIZATION
RELAXATION
RELIABILITY
RESONANCE
SPECTRA
SPIN
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS