Abstract:

Tarballs from sediments of Gulf shores from Texas to Florida were sampled in July 2010, April 2011, and August 2011. Nuclear Magnetic Resonance Spectroscopy (NMR) was used to determine concentrations of aromatic hydrogens in dichloromethane extracts of BP tarballs. NMR peak areas relative to 1,1,2,2,-tetrabromoethane (tBE) and content ratios are included.

Suggested Citation:

Gryko, Jan. 2015. Hydrogen content in dichloromethane extracts of 2010-2011 BP tarballs. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7KW5D0H

Purpose:

To check the heavy oil content in the Gulf sediments Gulf shores from Texas to Florida

Data Parameters and Units:

Name: Sample label, Vial: Mass of vial (g), Vial+Sample: Mass of vial and dry Dichloromethane (DCM) extract (g), Vial+sample+CDC13: Mass of vial + DCM extract + CDCl3 solvent (g), Sample: Mass of DCM extract (g), %tBE in CDCl3: percent of 1,1,2,2,-tetrabeomoethane (tBE) in CDCL3 solvent (1.992%), mmols tGE: millimoles of tBE added, Aromatic peaks (9.0 - 6.5): NMR peak areas relative to tBE peak (ppm), CH peak (4.0-2.0): NMR peak areas relative to tBE peak (ppm), CH2 peak (2.0-1.0): NMR peak areas relative to tBE peak (ppm), CH3 peak (1.0-0.3): NMR peak areas relative to tBE peak (ppm), Residual CDCl3 peak: area of residual CHCl3 peak in CDCL3 solvent, Residual DCM peak: area of residual dichloromethane peak (DCM) in the extract, TMS peak: area of TMS peak, Aromatic (mg-H) in 1 mg sample: the amount of hydrogent per 1 mg of DCM extract, CH (mg-H) in 1 mg sample: the amount of hydrogen per 1 mg of DCM extract, CH2 (mg-H) in 1 mg sample: amount of hydrogen per 1 mg of DCM extract, CH3 (mg-H) in 1 mg sample: amount of hydrogen per 1 mg of DCM extract, DCM-(mg) in the sample: mass of residual DCM (mg) in sample, hydrogen amount ratios of aromatic:CH, aromtic:CH2, CH:CH2, and CH2:CH3.

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