Elemental Mapping and Characterization of Petroleum-Rich Rock Samples by Laser-Induced Breakdown Spectroscopy (LIBS)
نویسندگان
چکیده
The application of Laser-Induced Breakdown Spectroscopy (LIBS) is presented for the direct elemental analysis hydrocarbon-rich solids. In recent years, LIBS has become a powerful tool obtaining information and mapping different petroleum-rich samples with minimal to no sample preparation without need separate organic matter from inorganic matter. By selecting most intense representative lines, element distribution in 2D map can be accessed less than ten hours. For this reason, two types solids were chosen examination, i.e., core shale. Nineteen elements identified samples, Ca, Mg, Fe, Ti, Ni, C, H, K, O, S here. A detailed elements, main components hydrocarbons present these determined using LIBS. H/C molar ratio was by building H C calibration curves data obtained classical via combustion. These contained high degree linearity (R2 > 0.98) limits detection (193 nm), (247 (656 nm) 848 mg kg−1, 353 3.5 respectively. combining all information, allowed us determine how spatially distributed, which dominant given sample, much hydrocarbon present, as well providing quantitative determination ratio, its correlation source origin.
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ژورنال
عنوان ژورنال: Fuels
سال: 2022
ISSN: ['2673-3994']
DOI: https://doi.org/10.3390/fuels3020022