Lubeck, Josephine S. published the artcileSupercritical fluid chromatography for the analysis of oxygenated polycyclic aromatic compounds in unconventional oils, Name: 1-Hydroxy-2-naphthoic acid, the publication is Journal of Chromatography A (2019), 162-172, database is CAplus and MEDLINE.
Unconventional oil feeds can be rich in oxygenated organic compounds that will neg. affect the fuel properties if they are not removed during refining. In this study, supercritical fluid chromatog. (SFC) was utilized for the combined anal. of polycyclic aromatic hydrocarbons (PAHs) and oxygenated polycyclic aromatic compounds (OPACs). One objective was to chromatog. sep. PAHs from OPACs; another to reach a high peak capacity, improved peak shapes and high signal-to-noise ratios (S/N) for OPACs. These objectives were set to establish a non-target anal. method for oxygenated compounds in unconventional oils by SFC hyphenated to a UV detector and a quadrupole time-of-flight mass spectrometer (QTOF-MS) with neg. electrospray ionization (ESI–). Highest peak capacities were observed with a 2-picolylamine column with methanol as modifier, however, a better resolution and S/N were obtained with ethanol and 0.1% formic acid. The elution order for OPACs on all columns followed mainly the polarity of the analytes: furans < aldehydes ≤ ketones < phenols ≤ carboxylic acids. Best separation between PAHs and OPACs was achieved with the ethylene-bridged silica column. The optimized SFC-UV-ESI–-QTOF-MS method was tested on a coal tar middle distillate and a pyrolysis oil where a number of homologous series (e.g. hydroxy-naphthalenes and -benzaldehydes) was tentatively identified.
Journal of Chromatography A published new progress about 86-48-6. 86-48-6 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment,Natural product, name is 1-Hydroxy-2-naphthoic acid, and the molecular formula is C11H8O3, Name: 1-Hydroxy-2-naphthoic acid.
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