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UOP 963-98 Trace Aromatic Hydrocarbons in 90 to 400 degrees C Boiling Range Petroleum Distillates by HPLC
standard by UOP LLC, A Honeywell Company, 01/01/1998
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This method is for determining aromatics in petroleum distillates boiling in the range of 90 to 400 degrees C by High Performance Liquid Chromatography (HPLC). The method determines aromatics from 0.001 to 4 mass. Above 4 mass, use IP Method 391. The aromatics should be predominantly mono-substituted, single-ring aromatics. Multiple-ring aromatic compounds and aromatic compounds containing two or more alkyl-substituents bias the results high. Significant levels of benzene bias the results low. Compounds containing sulfur, nitrogen, and oxygen may interfere. Mono-alkenes do not interfere, but conjugated di-alkenes and polyalkenes may interfere.