Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type

Details Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55.2259m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 55, Issue 8, pp.2259-2268

Computer Science

1

Scientific paper

A "carbon type" analysis for kerogens and coals based on solid state 13 C NMR is reported here. Standard CP/MAS NMR spectra and dipolar dephased spectra are acquired. Chemical shifts of appropriate carbon types, stored in a computer-based reference library, are fitted to the dipolar dephased spectrum using computer software. This step is then repeated on the difference between the standard CP/ MAS spectrum and the dipolar dephased spectrum. The method has been applied to a suite of eight immature kerogens and coals from sediments which vary from lacustrine, marine, to deltaic in origin, in order to investigate differences in molecular structure with variations in organic input. Distinct differences are observed in the distribution of oxygen-containing, aromatic and aliphatic carbon types depending on the type of organic matter contributing to the sediment (algal/bacterial or terrestrial) and the depositional setting. These differences are systematic and can be explained in the light of the chemical composition of the organic matter which originally contributed to the sediments.

Affiliated with

Also associated with

No associations

Rating

Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of molecular structure of kerogens using 13 C NMR spectroscopy: I. The effects of variation in kerogen type will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1727201