Polycyclic aromatic hydrocarbon dermal tumorigens: Comparison of high-boiling petroleum crude oils and distillates and coal-derived liquids
✍ Scribed by Wayne H. Griest; Bruce A. Tomkins; Michelle V. Buchanan; A.Russell Jones; Roberta R. Reagan
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 563 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
✦ Synopsis
Two petroleum crude oils were distilled into two sets of fractions patterned after the boiling ranges of crude coalderived liquids, including a heavy oil/heavy distillate (bp > 232"C/450°F) and a high-boiling vacuum gas oil (bp > 343"C/650"F). Samples ofthese distillates and two naturally occurring, undistilled, high-boiling, petroleumderived crude oils were analysed for selected four-to six-ring polycyclic aromatic hydrocarbon (PAH) dermal tumorigens.
The PAH were isolated using semipreparative-scale high performance liquid chromatography, and quantitated using gas chromatography-mass spectrometry in the single-ion monitoring mode. The isomer distributions of these PAH in petroleum-and crude coal-derived samples exhibiting similar boiling ranges were different, and the concentrations of the PAH were one to two orders of magnitude greater in the coal-derived liquids. Their distributions and concentrations in the petroleumderived samples were more like those in hydrogenated coal liquids than those in the crude coal liquids.